Is he declared disabled? Can he receive outside services? He does sound disabled and possibly too naive to not go along with negative peer pressure and an IQ of 56 is way below average. Mindblowing that he cant get government help except jail time.
Is he per chance adopted? I am thinking of fetal alcohol spectrum disorder which so many adopted kids come to us with. I see he does have aspergers on top of a low IQ. It makes me almost sad enough to cry that this young man really has no appropriate support place to live and be monitered. I an so sorry. My heart hurts for your entire family. I am, like you, not convinced he CAN make good decisions. If you pray, my prayers are with you. Wish I could help more. Certain disabilities make it difficult for people to do the right things on their own. Not everyone is equally able to navigate life.
