Indeed, and Judge Bork was ridiculed for pointing this out in his book, "Slouching Towards Gomorrah: Modern Liberalism and American Decline."
Bork contends that the invention of the transistor radio allowed young people to develop a subculture separate from that of adult society.
I believe that the development of this subculture, along with widespread drug use, permanently altered the nature of society. In past generations, the impulsive, self-absorbed stupidity of adolescent twerps was kept in check throught societal sanity until the point at which the little punks"grew up" (When I was a boy of fourteen, my father was so ignorant I could hardly stand to have the old man around. But when I got to be twenty-one, I was astonished at how much the old man had learned in seven years.). We now have entire generations who have never grown up.
Electronics has enabled the creation of self-affirming subcultures of stupidity.
Frank Sinatra was a big part of creating a distinct youth culture. In the 1940s, his unprecendented and exclusive appeal to adolescent girls set the stage for Elvis and then the 1960s youth movement.