Well... in all honesty, if she can't handle a bit of ribbing and negativity about her roles, acting might not be the best thing for her. Not meant to be an insult, just a statement of practicality. Creative pursuits can be very rewarding, but they aren't for those with easily bruised self-esteem.
Very true, Jeysie. But we are talking about a 13 year old. And it's one thing to get ribbing from strangers every once in a while, but to get it from classmates that you have no choice but to see everyday - it can wear on you BIG TIME.