It can be hard thinking that people are staring, especially when you're at that difficult age (I used to hate it when people referred to it as a 'difficult age' and now I'm doing it

. Always makes it seem as if all your problems are due to your age, not any legitimate reasons or concerns. *hits self on forehead*). Also, I can completely relate to her not wanting to look sick, or to remind herself of her illness by using a chair. However, it will make her holiday a lot easier and a lot more fun.
I honestly don't think people would make negative comments about a child in a wheelchair. If they do, you should give her full permission to run them over in the chair!
Might the idea of decorating the chair up make her warm to it a little? Different people will feel differently about this, but I love decorating my chair up, and when I went to Disney in full decor, all I got was positive comments. It can make it feel more like it's 'yours' as well; by putting your stamp on it, you're claiming it and making it an expression of your personality.
Another reason some people object to using a wheelchair is that they feel they'll be reliant on someone else to take them everywhere. If you reassured her that she could push her chair, or get up and walk, when she felt strong enough to do so, this might ease some worries. Obviously, her arm muscles aren't trained enough for her to push all the way around the park, but she could go off on her own to explore a shop, go through a ride queue or go to the food court at the resort to pick up a drink.
I know that some people find the analogy of glasses helpful. Some people have some problems with their vision; to compensate for these they use glasses. Other people have problems with mobility or stamina; to compensate for this, they use a mobility aid. There is not really any stigma attached to wearing glasses, so why should there be for a wheelchair?
If your daughter wants to talk to someone who's been through this 'adjustment' feel free to get her to PM me, and I'd be happy to chat to her.
Good luck and have a wonderful trip!
