Blonde-haired and blue-eyed, with no sense of consequences, Bryce was basically raised to be a spoiled, rich brat. He would have definitely been a frat bro, backwards hat and all, if he had attended college. He went the performance route, however, as often happens with child stars with rich parents in LA. 

Now, he "writes" the majority of the songs (with major edits from his team), sings the lead in the majority of the songs, and gets the most attention from fans on their worldwide tours.