I just want to make sure I've got this right: Characters that start the game as Apprentice Wizards and Initiates start with the Spell/Blessing cards marked with the Basic trait, correct? For Apprentices, this is Channel Power, Magic Dart, Cantrip, and Counterspell; for Initiates, Curry Favor, Blessing of Health, Minor Blessing, and Minor Ward. In addition, Apprentice Wizards receive Spellcraft and Channeling for free. If, however, a character starts in another career and wants to become an Apprentice or Initiate later, she must buy all of these abilities (if she wants them) and train the skills with advancements as normal, correct? Seems fair enough, except that careers are limited in how many advances you can spend on skills and action cards.
This isn't really a rules question as such, I'm more just "thinking outloud" so to speak. If I have all this right (and please correct me if I don't), it's a real pain in the ass to become a caster in a later career rather than starting as one. You're much better off beginning as an Initiate or Apprentice and transitioning to something else if you want to "round out" your character. This doesn't seem like too big of a problem, except for the fact that by the standard rules, your starting career selection is going to be at least somewhat random, so you may not have the option of starting as a priest/mage.