The indoctrination of the low value of their knowledge, and of the superiority of OUR knowledge.
When I was young and went to the village to work it was with these vague fears and misgivings about schooling.
A long while later my fears have proved real. Children of a wise community, deeply versed in animal care and agriculture ... struggle to learn English, and to get a degree which will place them at the lowest echelons of work.
The saddest thing is that they have themselves denied their own wisdom.