they kid here is not stubborn just stupid. Literally. 58 on the IQ? I am surprised he can tie his own shoes.
They did not have institutions back then but they had a way of dealing with crazies or out of control people. Usually tied them to a tree or something.
FReepers are correct he needs in an institution.
Lots of "inner city" kids know that a low IQ score is a "get out of jail free" card. So they deliberately score low.