I don't really feel different or more mature or smarter or something, but starting to notice just plain... I dunno, experience? Like I see an 18 year doing something stupid, and I know it's stupid because I did the same thing.
Thankfully, I also still realize just how useful and appreciated my advice will be, so I keep quiet.
But yeah, the BIG generational gap I'm noticing is that I'm okay with playing. Like, gaming, rpg, boardgames, larp. That's cool with my generation and the newer ones. But for the vast majority of 50+ people, admitting that you like having fun is anathema for some reason.