You're wrong. The majority of people who start banRAB are young. The majority of music buyers are young. It makes a lot of sense.
That other 90% would be Jazz, Classical, Folk, Prog, crap like that, I dunno maybe I'm wrong to bunch all that into a measly 10% but then you have a lot more music thats marketed to a younger audience.
You have...
Punk, marketed primarly to teenagers
Metal, marketed primarly to teenagers
Hip Hop, marketed primarly to teenagers
Emo and Goth Rock, marketed primarly to teenagers
Pop, marketed primarly to teenagers.
Electronic music, marketed primarly to teenagers.
Alternative rock music, marketed primarly to teenagers.
Reggae and Ska when they were established, mostly popular with teenagers.
Rock N Roll in the 50s? You guessed it, teenagers. R&B and Motown? Yep teenagers. Psychedelic rock, Glam Rock, Funk, Disco, New Wave, Grunge, Britpop. Teenagers teenagers teenagers teenagers teenagers teenagers teenagers.
Almost all genres of music begin with a youth related movement. Because teens are more interested in finding (and creating) new music than older musicgoers.
So yeah, that was a bad example and it wont fly here. I don't think you trolling this thread is at all amusing either.