My daughter is 3 and a half and still much prefers the potty to the toilet, I think so she doesn't have to leave the room and also if she uses the toilet she has to wash her hands, whereas if she uses the potty in the front room I wipe her myself so she doesn't have to bother washing her hands. Is this lazy and/or babyish and should I be encouraging the toilet? She happily uses the toilet at nursery and out of the house, or if we happen to already be in the bathroom!