Once that happens, what good is potty training? Every time he needs to pee or poop he’ll just do it in his diaper and forget about it. Next year he may end up taking a diaper bag to kindergarten. He won’t like it, but it’ll be for his own good. I can’t let him sit in wet and soiled underwear all morning at kindergarten, no matter what I think! Besides, if he demonstrates that he’s not potty trained, the school will put him in diapers as a matter of policy!”