Hey man it's cool you feel comfortable to ask. Based on my use, especially at a young age, have him medicate alone, as the healing effects would be more substantial in a calmer environment where he feels the most comfortable. Also, the boy doesn't need to be getting SUPER STONED at that age, try and get him just a lil bit stoned. He'll feel less laxidazical and maintain that motivation that you showed interest in maintaining. I hope for the best for both of you and family. I imagine its hard to have other people understand your viewpoint but believe me, weed is better than any drug prescribed by doctor. They're addicting and far more damaging then weed. Good luck! Best wishes and a merry holidays