K.T.
I was a toe-walker as a kid, and I never had braces or anything like that. However, toe walking did cause my muscles to be shorter than they were supposed to be, and I went to PT to learn how to stretch. Also, I had many ankle sprains growing up [including a couple that were bad enough to need a cast even though there were no broken bones] and generally had 'weak' ankles, which the doc said was all from toe walking.