I hope it all works out Mark......
I know your feeling, my son (now 10) had a problem with his right ankle bring turned in slightly and we were told the same thing about waiting and seeing if he grows out of it. It has not effected him in the sense of his sporting prowess as he is an outstanding Aussie Rules player and Teeballer.
It occasionally gets sore and hurts after sport but it is slowly going away and fingers crossed it will all be gone soon enough and he will fully grow out of it.