Teenagers growing up don't only have a plethora more of opportunities & tools -- they also have a plethora of distracting activities that can take away from the careful attention needed to make great music.

Sometimes I believe the guys in the 60s & 70s ironically had it easier because they just sat around, maybe smoking some dope, and played music. There wasn't a smartphone at their hip vibrating every few minutes, so they could really just pour their heart into the music and hey, Pink Floyd, Zeppelin, Beatles, Dylan, etc... you name a great, probably came out of that time period. While I like a lot of stuff today, I do question if it'll hold up to the test of time and personally feel very little of it will when compared to how much did & will continue from the 60s/70s.