He also never complained about it unless he discovered his singing abilities. Then he realized that he doesn't want to always be the basketball guy, that's his extrinsic motivation while he has an intrinsic motivation which is singing. Extrinsically motivated behaviors are generally unappealing to many of us. But sometimes it might be a necessity that no one can ignore. Even though many of us don't like studying, we still need to do it for an extrinsic reward that is a hope for a secure future.