Ah, you mean categories in general. That's a fascinating subject
in itself.
I don't think we need Universities at all, but its way of
categorizing human knowledge into silos has had a tremendous
influence on the development of our languages and ALSO on our
way of seeing and describing the world.
It's so hard to conceive of NOT speaking "in Economic terms" "In
political terms", etc because it's how we were raised. I can't
avoid it myself but considering it's commonly understood, it
makes it easy to use. That is, until it his walls. (metaphorical
walls).
Child-rearing... well, there are many systems of child-rearing.
First, there is the thing itself. Humans raise tiny humans or
else they die.
Then there is "schools of thought" on how to raise children.
Notice: schools of thought. There's a reason why that's an
expression in English. [connection to University-think].
See how hard it is to avoid?
So, my answer is: it's hard not to think in these terms.