Quoting Holly+Jon=Alice:" I did it when I was small and still do it. DD is 2 and walks on her tip toes a lot as well. We both have ... [snip!] ... have really flat feet so that might have something to do with it? We're also really clumsy, walking into stuff and tripping."
Quoting khigh:" I don't know if it would. I have very high arches. "