Also, it's easy to go out and protest and be unwashed when you have absolutely nothing to lose. The unfortunate youth of today are not as unfortunate as in 1968.
1. There's no longer any military conscription, which in the 60s forced even the most temperamentally apolitical under-26-year-olds to pay attention at least somewhat, since it was (legally) impossible to just ignore the war and go about one's life.
2. While many black youth are still disaffected, there's no longer any de jure segregation, so what remains is a more amorphous disaffection lacking the sort of clear spark/goal that the civil rights movement had. Overall material conditions are also somewhat better, for at least some proportion.
