Why won't justin beiber play the guitar or piano for a living?

i really am not a fan of this kid. neither is anyone i personally know of. however,though i can't appreciate his songs, i can appreciate his hard work ethic. i learned fairly recently that he his is a talented musical artist,who can jam on the guitar and play piano to boot. that's impressive considering i can't read a single music note. and i'm 31 years old. i'm more of a technical drawing artist myself. anyway,back to the question. this realization got me thinking; if justin's parents had paid countless $1,000's of dollars nurturing this his gifts,why then is he a singer,and not a musician? i don't like justin's singing,but would be interested in listening to him jam,or do his thing on the piano. i'm not a jealous bitter guy. i want these newbies to succeed. because artists like madonna,u2,led zeppelin,and countless others, won't live forever. and i want to know our future is in good musical hands. these youngsters will inherit the musical world which these former musical geniuses had paved the way for them.