What happens to the wicked men who don't repent but when they come to old age are not able to do it?

NO MATTER HOW BAD A SINNER GETS, EVEN IF HE CANNOT TALK OR WHATEVER IN OLD AGE. 

HE ONLY HAS TO GLANCE UPWARD TO THE FACE OF THE SACRED HEART OF JESUS SEEKING FORGIVENESS IN A HUMBLE AND SINCERE WAY, AND THEN IF HE DIES At THAT MOMENT, HE WILL BE FORGIVEN!

THE LOVING MERCY OF THE SACRED HEART OF JESUS GUARANTEES IT. 

HE MAY HAVE TO SPEND SOME TIME IN PURGATORY, BUT AT LEAST HE WILL NOT GO TO HELL!!!

THIS OF COURSE IS NOT MEANT FOR THOSE WHO THINK THEY CAN SIN ALL THEIR LIVES AND AT THE END THINK, OH GOD WILL FORGIVE ME. THIS IS CALLED THE MORTAL SIN OF PRESUMPTION. BESIDES, YOU COULD DIE SUDDENLY AND WITHOUT WARNING, THEN IT WOULD BE TOO LATE.

AS LONG AS GOD KEEPS US BREATHING, WE HAVE TIME TO TURN TO HIM. WE SHOULD TURN TO HIM IF AND WHEN WE SLIP UP FOR YOU KNOW NOT WHEN HE WILL CALL YOUR SOUL BACK TO HIMSELF!!!

I question what happens to them who assume, judge and believe theirs is not in any danger while they are worried about that of others.

"when they come to old age are not able to do it?"

They get a prescription for viagra. 

It brings the smile back to their faces. 

Potentially , while we're in this probationary period, there's always the possibility of changing, but change takes time.

 The reality though is that due to this process, what we think becomes our actions, and our actions become our habits, and our habits become our character, either good or bad, and that is what we are at the end of the day.

 Contrary to what SOME religious people think, and what some claim religious people believe, God is not going to magically change people after they die, neither is he going to make character judgments on any rituals we perform at the last minute or any "magic" phrases we may utter.

It's my understanding that it's fairly common for men to lose the ability to "do it" as they pass middle age. If I love you, then it won't matter to me. Plus, if you want to do it and you can't, there are ways, fingers, tongues, etc. I'm open to alternative ways of doing it. 

What's old age have to do with not being able to repent, you can repent at any age when you obtain knowledge of what is right and wrong, the age of accountability.

That's the sad thing about Christianity and what they believe. They believe they can do the worst things in the world and pollute it destroy stuff and all they have to do is say a few words and all is good. 

everyone is able, not all are willing

Mind your own business.  If it's something like global warming then it is everybody's business but whether or not someone needs to repent on their deathbed is up to them.  Who gets to decide what "wicked" is?  Personally I think that people who pollute too much are wicked but others seem to think that's normal.

They end up in hell for eternity.  Very sad.