I’m more confused on where you got this notion that a certain age group is less likable than another.
Well, when you’re young, you’re a bit more self-righteous, a bit more prone to being loud and obnoxious. Now, not always, but generally that seems to be the case.
The old are just as self-righteous, they’re just less idealistic. And I know of a lot of older people that get just as drunk and rowdy after work as your average college student. At least young people tend to be less inhibited and less socially conservative. That’s one benefit they have in terms of likability. My position is that all genders, races, ethnicities, and ages are just spinning their wheels in the dirt as far as humanity goes.