I have daily struggles to persuade DD1 3.5 yo,who thinks she is a princess, to take off her 'long dress' (a dressing-up item) when it's time to go out or to bed. Sometimes I hide it for a few days but then feel sorry for her and allow it to reappear. Do all litle girls go through this highly irritating phase? Does it serve any purpose in the developement of her self-image? Will I stunt her developement if I refuse to go along with it?