My dd2 (just turned 3) has been a very reluctant potty trainer. She initially got very upset about the idea of not wearing a nappy, but I've had a bit of a breakthrough recently and with some gentle encouragement I've managed to get her comfortable being nappy free and using the potty (for the most part). But I followed the approach of not using underwear and she's still getting upset if I suggest she wears any. Don't know why. Any tips? Today she's commando under loose leggings but I don't know how long nursery will be happy with this as if she does have an accident it's obviously a bit messy, plus not that hygeinic if she's wearing a dress.