[mgkimsal]

I get what you mean but 'prestigious'... doesn't seem the best word. The idols they looked up to had all written a lot of their own stuff (Chuck Berry and Buddy Holly seem like the archetypes there). The Beatles sort of invented the 'self contained group' (singers, songwriters, performers all in one) and it seemed to become almost mandatory for groups after that to at least have a go at writing.