This bit of dialogue, for example - George Jr to Jimmy before the car incident:
Cleary the writers were aware of the "stack of books with legs" and offered an explanation for what happened to him, based upon the death of his father and the differing environment he grew up in.
GEORGE JR.
She's gone for five more months, by then
I'll be in a different system.
(sees fear in Kirk)
You're gonna be okay. You always are.
Always doing everything right -- good
grades and obeying every stupid order...
(then)
I can't be a Kirk in this house. Show me
how to do that and I'll stay.
Cleary the writers were aware of the "stack of books with legs" and offered an explanation for what happened to him, based upon the death of his father and the differing environment he grew up in.