@endoftheline That actually was set up, even if only in passing back near the start of the series.
"You'll need language and crafting skills. I can also throw in some fighting skills for your self-defense. As a tradeoff, you'll have the bare minimum in magical ability, but you won't need it for day-to-day life anyway. What do you think?"
"Sounds good to me."
Admittedly, the actual combat skill he ended up with would seem rather disproportionate to its description...