Hi Sue. Our son basically has never forgiven us for his four psychiatric hospitalizations, two Residential Treatment Center (RTC) stays which all together added up to less than 6 months of his life. He is now 21 and has severed all contact with us. Were the hospital stays necessary? Yes, I still feel in retrospect, they gave us a break. Did they help our son? Nope, not at all. However, I can now look back and honestly say that I did what I did with the best of intentions.
That is what you guys have done too - you can't look back and doubt yourself. You did what you did with the best of intentions and did what you thought was best for thank you.
Yes, he will eventually have to deal with the "outside world" and how will he do? Again...we can't predict the future. You have always impressed me as such a dedicated and loving Mother - thank you is lucky to have you. (Although like a lot of our kids, he may not admit it).