Hi SunshineDaydream!

Erm... this might sound anal, but Polly didn't dress up as a man because she "wouldnt' accept being a girl". From what I understand, she had no problems with being a girl (well, eventually she discovered a few advantages to having short hair and socks, but that came later). The reason for her transformation was to find her brother - and to do that, she had to join the army i.e. become a man - she wasn't doing it out of protest or rebellion.