Poor thing looks like someone is not allowed to be using the potty. And instead he is force to be using the diaper instead. He dont seems to be so happy about that but what i can see his caretaker dont give him any choice here. She seems to be thinking that he is not ready for the potty yet and should be using his diaper instead when he needs to pee or poop.
And it sure seems like he have start using his diaper to :) So i think it is to late for him to be using the potty anyway.
Poor Kai looks like his daddy is very angry on him now and send him to school in a thick diaper sucking on a pacifier. I can sure understand way he is so embarrassed about the situation. Can not be so match fun to be force to stand in front of the whole class dress like that :( But it not match he can do about the situation now. Maybe he should think twice about sneaking out when it is your bedtime.