Do you know why today few martial arts schools do this....?

The biggest reason IMO is that many instructors do not know. They began teaching and didn't fully understand their art. Then this trickles down to the next generation of teacher teach only what they have been taught.

Then you have those that are not passing on knowledge. They are only there to earn a profit. They will only do what they believe will keep students paying their fees. If the trend is to teach a sport they will teach a sport. If the trend it to remove techniques to keep it safe for children they will do so as most of their student are children.

Then of course you have those like Possum. He says that his insurance won't allow him to teach certain things.

This is a good question. I understand where you come from on this subject. I also think some of the instructors who teach now are not taught much of that style.

I have been fortunate with mine. He actually will take time and break down forms and techniques. He has never passed or tested anyone who was not ready.

He even at times has shown things to certain students more advanced techniques than what should be shown at their level. He will also make adaptations to students ability, if they have a ailment he works around it. He has a few that have injuroes like say a bad knee and knows that can't do certain things. And he improvises the technique to fit the student's ability. Most other instructors i seen and know of don't do this. And yes he treats and teaches the children different than the adults.

Some students also are in a particular martial art just to learn a few things or get a blackbelt than they leave. Only the dedicated students seem to get the full or more complete knowledge of the system.

KW still doesn't understand how you shouldn't or can't learn more advanced or complex techniques without understanding the more basic techniques. Why teach a half hearted student things he can not comprehend. There is a psychological, philosophical and spiritual side to almost all martial arts.

You have to master the basics before you can comprehend the next level of techniques. Since they are based off the basics.

If you don't have a solid foundation in a house the house will collapse. No matter how good of a roof and walls you have.

@KW you still need to grow up. Maybe you never found a good instructor to teach you. All martial arts have a hard/soft, internal/external and a technical/scientific aspect to them. You just are to ignorant to see them.

There is more to it that one can actually see.

I think it may be two things. The first thing and the ugliest one is that many "instructors or masters" do not really know in depth what the application of the art is,is pretty much the same as having a lack of knowledge on what they are supposedly teaching. In other words they themselves do not know what they are teaching( and i am not answering on the path that they do not teach more because there are deadly secret moves that only a few chosen ones may be able and worthy to learn) but for example Karate is much more than punching and kicking and as for Judo there is more than meets the eye in terms of groundfighting

The other reason I think is because many instructors only care about the number of students and how much they will charge at the end of the month,so they only teach basics because even if they have the quality and knowledge,it is too hard for just one teacher to give a proper lesson and explain basics and let's not say advanced applications to 40 or 50 students. Also mcdojos can be another one, if you promote bad quality blackbelts it is most likely that they will do the same.

I can't answer for all cases, but for me there are three reasons:

1) Most do not teach beyond the basics because not many students stick around long enough to actually master the basics. Some schools do teach more, but as have been stated not well and too soon.

2) Teaching is in itself an art form. To master a martial art does not automatically give one the ability to teach it well. I know many accomplished artists who could not teach the subject to save his own skin. To teach well requires a certain ability to empathize and communicate well, and while teaching the basics is not easy teaching the more advance techniques is on an order of magnitude more difficult.

3) At a certain point in a martial artist's journey, he has to be self motivated to find the way. In this regard, one person's way is not necessarily the best for another. At the very high level, the techniques require an individual interpretation to make it work for oneself. But more important, beyond the technique is the idea that gave birth to the techniques. For example, I have had to revisit White Crane Spreads Its Wings over the course of 2 decades because I keep discovering new facets to it. I use to think I knew how to teach it, but now I am not so sure because there is something more behind it that I am finally beginning to glimpse. What I was doing before was teaching the outward expression (the technique), but I now realize I have no clue how to teach the idea.

Legal issues come to mind for me. Perhaps at a commercial dojo with mostly kids you don't want to be teaching folks the more serious techniques, weapons and other things because they could end up in court pointing at you for teaching them.

I don't really have a great answer other than that, since my training has been with people who (I hope and believe) have transferred their art as well as possible to me. I think that it takes a long, long time for a martial artist to truly start operating on a concepts level vs a techniques level, and that is the point where most good instructors start to give you more of their gems because they know you understand what they are trying to convey. They aren't teaching you any new techniques. In fact, many of those gems have to do with things you learned very early on. I remember a footwork pattern that had always seemed silly to me with a certain entry to a throw. Years on into my training, I stumbled upon the reason for the footwork as I was experimenting with different hand placements. All of the sudden the reason for the footwork dropped on me like a ton of bricks. After class I asked my instructor about this and he just smiled. Sometimes these things help an instructor understand where a student has progressed to in his own journey of understanding.

I am lucky, however, that for the most part my instructor doesn't stick to the old way of expecting students to "steal" techniques from him. He usually explains most things with the proper science behind them. But he still leaves enough little things unsaid so that he can track how hard you are thinking about things as well as allowing his students to perhaps form different theories and opinions, which he is willing to entertain and explore. I am very fortunate to have such a fantastic instructor.

I'd disagree.

If they were just teaching the basics but teaching them well it wouldn't be so bad, the problem is that a lot of martial arts schools are teaching beyond the basics but not teaching the basic knowledge of how to train properly so the student can actually learn how and when to use their skills. The problem is students knowing moves that are way beyond their ability to use in an imperfect situation. Just look at all the people who wind up on their butts when they try to use something as simple as a mid kick - that's a basic move that they've stuffed up because nobody made sure they could use it anytime under any condition.

How i define what we call style, is established from the chosen training methods of each master but the original source is still the same, if thats the case which i believe it is ,yes I believe we do teach a full system, I know lots to do with my art but im still learning and even to this day i class myself as a student first but i cant really say why people have lost there handle in certain school's,

To much personal interpretation being passed on without the key knowledge?

Not enough quality control in the bigger schools actually I just got a national email from the head of my school saying no more black belt gradings at local branch level, we changed a few years ago to a system where we tried to have a panel and local black belt gradings to save people from having to travel, but my teacher was disappointed with what he seen of one of the new blackbelts that had been graded under the new system without him there, so scraped it on the spot. I know a few of our senior guys have broken away and formed there own organisations but throw my teachers and there certifications from him all over there websites, so in that case i guess someone might have heard about my teacher and believe they are getting trained under his lineage? yet they wont be getting that, instead a version of it that they think is it, then the downhill slide begins ?

All I have to say is even if the extreme happened and one would think all martial art dojos became mcdojos but think about it. You do not have to have a dojo to train. So in the end there will never be all mcdojos because like at a school i started to train at its in someones backyard/garage. Also at my old school which i left because i moved away it was at a recreational center but rent was cheap and all we had to do was buy our own belts. At my new school all I had to do was buy a black gi and the Professor even gave me a new white belt. Also another situation to cancel out that all schools will become mcdojos is that people could have practice at a beach or park. So in the end no matter what happens there will never be all schools mcdojos. A DOJO is a place where you train of the way and the way could be trained anywhere not just on a mat in a buidling

The same thing that ails all modern education teaching to the exam instead of the students individual capabilities.In that sense keyboard warrior is correct there is no such thing as advanced or secret technique .

Another problem a lot of instructors don't have a clue about just how technically refined and complex their own art is.When I read someone comment "took 4 years to get my black belt 2 years later I had my own dojo" another fn mcdojo was born.Then again they probably were taught in a mcdojo to start with.

If you take Okinawan Karate, many of the people who know the art do not travel to the US but wait for people to go and train with them. I have met people there who have trained under Shoshin Nagamine, Choshin Chibana, and many other of the great masters. These people sometimes claim to be 3rd dans and have 60 years of continuous training daily under high ranking instructors. In the west, we have 20 year olds who claim 10th dans and 5 year olds with dan rankings. Many (not all) in the west, trained for a year with real masters then started their own schools and organizations and did not continue to get corrections. What happens is that many do not know more than the shadow of their arts. They might have 30 years experience but have not continued learning. I do not believe that their effort is enough.

If you look at it as something academic, someone with a 5th grade education that does not continue with school does not become a doctor because they are doing the same thing that they were when they were in 5th grade for the last 30 years.

I guess that what I am saying is when the teacher does not know, the student will not know and you start getting "traditions" rather than real training.

You are correct in that many schools do not teach all of their style. I beleive that it is because of inexperienced instructors that begin teaching. It can be due to a martial artist that decides to open his own school even though he does not have much experience in his style. He probably only knows the basics, and in many cases people like this are first or second Dans. That is not enough experience to begin teaching independently, but many go and do it regardless. You can't teach what you don't know, so they then pass on their limited knowledge to a number of students. His students can only know what he knows, maybe even less, so this creates a large number of people that do not know their style in its completeness. In this case, all it really takes is one bad instructor to create many people that have not learned their entire style. This generation then goes on to teach others, and the problem multiplies, creating the large number of schools today that do not teach their complete style. It is a shame really. That's why it is important for the entire style to be preserved and taught. And one can only start teaching once he has a significant amount of experience.