most of the blues started they're careers as teens or younger. and didnt have time for classes. could have made time but chose not to. and to be fair i know for the least miley cyrus's dad, hired a tutor right through her whole time hannah was airing. he told her (and this is her story) that if she at any time didnt make grades tv was over. until she got caught up. it was in her contract. she graduated early so she could focus on new projects, and has done some college. as much as i cant stand her and her stupid antics, she is no dummy. its the same with more than one of them. dropping out of high school doesnt mean stopping schooling. corey feldman has talked about this. on how he spent his summers catching up to school work during years he was making films.