I don't know if you're missing my point intentionally or just thick? Going by that grammar it may be the latter.
I'm not saying he's not been given opportunities. Personally I think I'd find moving abroad very difficult for various reasons. Culture shock (maybe not so much in Spain) and language barrier being just a couple. Moving away on your own (none of his family moved with him) at such a young age to me shows great strength of character already. I would concede that there's certainly room for improvement and that he needs to do just that before he can go up the level required for grand slam success.