I think your daughter will be fine. I'm 5'1, 105 lbs, and have looked 12 since I was 16. I know makeup makes me look older, but I just can't be bothered to paint my face at 5:30 am. I've had a long and steady career as a nurse, since I was 22. Sure, I've gotten loads of comments about how young I look ("are you even out of high school?!") from people over the years, but it hasn't hindered my career even slightly. I usually tell patients that I might look young, but I know exactly where to stick this catheter. She'll be okay, makeup or no makeup. Let her be.