My dad told stories of how he hunted when he was my age, I had always been an outdoor kid and had been Interested in archery since I could tie a string to a stick, so hunting was a natural step to make. My dad never tried to force me to hunt, I just loved being outside and one day I told him I wanted to go hunting, he got the guns out of storage and took me out hunting, and I immediately loved it. I see it the same way with archery form, maybe give him a few pointers so he dosent smack his wrist but I would let him enjoy shooting and being outside. Try to show him that bows are awesome and that so is nature, but if he someday decides he dosent like it anymore then his interests are his interests.