Unfortunately, that's what the music scene seems to be about these days...
Don't finish school, don't learn a job, be a loser, but then you can still be a music star and make it to the top!!
Seriously, how many singers out there can sing like Alicia (three octaves!), actually play musical instruments, not that computer enhanced bullshit that 99% is about.
I'm sure quite a few. The reason why they aren't popular, is there is only so much room for musicians in the music business.

Like Norah Jones. Just because someone plays an instrument and sings, is more novelty in the industry, than your typical Gaga bs. She can play a piano and sing, as well...probably not as well though.
You could go to NYC and find a dozen decent singer/songwriters easily, who play an instrument...but that's not what popular music is today.