Hi, My son is 3 year old on this Feb 5 ..and he refuse to go to potty in toilet n even he don't go in potty sitter... He always want to wear diaper to do it.. Otherwise he doesn't wear diaper only when he want to do potty he want to wear diaper... If I say no diaper.. U have to go toilet.. He didn't do potty whole day... Please help me ..because now he will be going to school then it's a big problem