I'll also say this: I talk to a group of them, and any youth culture shit from 1955-1984 that a hipster growing up in the 90's was aware of needs to be explained to them. I have told people about: The Beat Generation, Andy Warhol/Velvets, 77' punk and 80's hardcore. I've talked to kids who were not aware of this shit. I even know a girl who didn't know who James Dean was.
They don't seem to care, either.
It's weird.