I would just tell her, lol and to be perfectly honest (from another short person) it will tip over again. I'm a super confident rider but have on occasion just dropped bikes because my foot didn't touch the ground. I actually prefer not to have perfectly shiny, non scratched bikes because then I worry too much about scratching them and end up scratching them or dropping them anyway. Derp. Learning the skills, riding and practicing for me are much more important than worrying about a scratch or dent in my bike and having it look perfect every time. Anyway, I hope she enjoys the bike and gets out riding lots soon.