This might annoy you, but it needs to be said: Ged's education doesn't end when he gets out of school. Sorry, we're starting to sound like an after-school special. But education is a central issue in A Wizard of Earthsea. Ged gets one type of education from the wizard Ogion and another from the wizard school (Roke), and then Ged gets another sort of education from hunting down his shadow. We might say that one of the most important elements of Ged's education is that it teaches him his place in the universe, and the consequences of his choices. That's definitely some out-of-the-classroom learning.