Should I try undies on my son at childcare? This weekend we have made the transition to undies during the day for my 3yo son… He is doing great, but obviously still having a few accidents. Getting less each time though! Tomorrow he is due to go to childcare and I’m not sure if I should send him with a stack of undies & shorts, or just send him in nappies. He has never done anything on the toilet at childcare… I don’t want to rush him, but I don’t want to set him back either? What have other parents done?