Furthermore, with a start of 13 "scholar points," couldn't a first-level caster dump everything into one skill and learn a sixth-level spell? Even if that's all the magic they could do, that would pretty well un-balance an otherwise first level adventure. However wierd the spell level system is, where a caster can essentially cast a spell at half his caster level, rounded up, it's tied into the rest of the Challenge Rating system pretty closely, so screwing with what spells a character at a certain level has access to can be dangerous to play.