I thought Permanent Residence (Canada) meant citizenship?

Okay. So now you know you were mistaken. No big deal. But every case is different so if it took him seven years that could have been down to his individual situation. If you want the abridged version of the CIC website you should talk to a Canadian immigration attorney. P.S. If you don't have the patience and/or reading comprehension to make sense of what is probably the most transparent immigration website on the planet you may not have the skills to qualify for Express Entry.

I thought Permanent Residence (Canada) meant citizenship?

You thought WRONG.

Immigration PR is the first step.

Citizenship is something that can happen if you qualify about 5 years after you arrive or about ten years from TODAY if start your application process now.

This forum is not long enough for all the many small steps in the process.

As you are TOO LAZY to figure it out you probably really do not want to immigrate.

Having just a bunch of points is not a guarantee of anything.

Those with the most points have BEST chance not a GUARANTEED entrance.

Millions of others have the same dreams. They do the work to get in. You could do it too if you really wanted too.

Permanent residency (PR) is NOT citizenship. It is a legal status which allows an immigrant to live & work in that country. And if they eventually complete remaining requirements, they might apply for citizenship in the future. IF their application for citizenship is approved, then they can become a citizen.

Immigration laws do change from time to time. The trend is to become far more restrictive as countries are overpopulated & it is impossible (a mathematical impossibility) to create enough new jobs & everything else required to keep pace with rapid world population growth. Expect whatever points are granted now for various factors could change by the time you fulfill such requirements as exist at the moment. You need to offer something a country like Canada needs & wants - education, training, skills, character, and more. What would make you a desirable addition to the country when tens - even hundreds - of million others want to go there?

PR means you have a visa to legally allow you to live/work in the country, many people live there for years or for ever without ever applying and paying the fee to become a citizen...so likely cost of the application and/or they don't qualify to apply because of the citizenship requirements such as test/interview...so wait, save up and improve their chances of qualifiying

No.  PR is what they used to call "landed immigrant."  It just means you are allowed to live in Canada, but, it does NOT mean citizenship.  After 5 years (I think; it might be 3) on PR status you can apply for citizenship.  There will be a test. 

On PR status, you can live in Canada, but, cannot vote, nor join the military.  For those, you need to be a citizen.

No. Many are residents but are not citizens. They get benefits like pensions, healthcare but cannot vote