Thanks for all the info! It rly helped!!!!!! I know that XC is dangerous, but I would do SOOOO many things to make sure his leg is okay. The vet suggested surgery, Its a $90,000 surgery thought. But we are very ''rich'' for say with our training barn and lessons my dad and mother do. I hate to brag, but im trying not to.. xD.
I would teach him probably teach him dressage first (im 17 and I know A LOT about horses :P) then show jumping, and we teach eventing in our lessons so we have a XC course xD but, we have smaller xc jumps for our kid tht are learning, and I would get him used to that first. But yeahh...xD