The early rock&roll that I like the most was the firstborn of folk,country,rock-a- billy, black gospel,blues,etc. and the best inspiration of all opression. No good music can be performed without some form of liberation. This is what I experienced with 60s rock. Everyone (musically) was doing their "own thing" and it worked. You heard an amalgam of music and zeitgeist that cannot be duplicated. Woodstock 99 proved that. Walt Whitman said "You can't go home again". This is never MORE true...
The unfortunate result of some of this is that the peace loving hippies became the BMW driving,Brinks secuity cocooning pricks that hate everyone.Yuck! I didn't want to get on that tangent.
Any how, I had a conversation a few years ago with Kermit from "Kermit's chairs" about Bob Dylan and started to listening to him (Dylan) with a more adult appreciation. This really opened my eyes about the content of some rock songs. Consider Steppenwolf's Monster,Suicide,America (yes that's the title).Much of their songs were about recognizing problems and changes hopefully for the better.
I hope our kids understand "it doesn't have to be this way and you can change it".