OP, both of these statements almost seem to be complete non sequiturs.  The first sentence about wealth being concentrated in the senior citizen population shouldn't cause any alarm.  Unless you're a person who made their fortune early in life (or inherited it), the tried-and-true method for accumulating vasts sums of wealth is to do it over a very long time period.  So who would the richest folks be?  Yeah, the boomers and whatever generation Warren Buffett belongs to (don't crucify me if he's a boomer; I'm too tired to check).

The second statement begs the question "Just where are the crypto markets going, and in what state will they be once the average 21-26 year old shitposting bounty hunter that makes his/her living from bitcointalk reaches retirement age?".  Nobody's got the scoop on that, so it's pointless to even write something like that.  There are no guarantees bitcoin or any other crypto will be around in 40+ years.