My daughter is going to be Cinderella for Halloween. My son (older 2) will be a mouse from the movie. When we go to Disney in December we will be celebrating my daughter's 5th birthday at 1900 for dinner and she will be wearing her Cinderella dress. Will it be bad if I let my son dress up in his mouse costume too? His costume does go with the theme. I have seen you tube videos of boys dressed as prince charming but wanted thoughts on if a mouse would be a bad idea. Thanks!