Watch Jimmy Cagney as George M. Cohan in Yankee Doodle Dandy (released in 1942). There's a scene near the end when a carload of young people stop in front of his house and have never heard of him or his songs.
Your complaint about youth is not new, and even though you may have forgotten, you and your generation were once the subject of such complaints by your parents and grand-parents generations. Of course their generation was called "une génération perdue" by the one before them.