I know my son is ready.. he will ask for diaper changes and will pee on the potty no problem... he has poop on the potty FEARS. He straight up freaks out whenever we try to get him to. He will cry for me to put a diaper on him because he has to poop. But as soon as he poops he wants a change. It is frustrating and I feel like I’ve tried everything. He is a big boy, 50 pounds well over 3 feet tall. We buy size 7 diapers and they don’t fit great 4T/5T pull ups are tight... he needs to potty train at this point