Because of my problems with paralysis sometimes I "forget" which muscles to use to accomplish a simple task. Although embarrassing, if the people around me and myself are in a rush, I ask the people around me what muscles to move to accomplish the task. Children think it is a game. Adults just think I am having a bit of fun with them so they humor me.

However, I literally either have to wait until I remember how to move (which can take 30+ minutes) or until someone tells me which muscles to attempt first. I have to be walked through the whole procedure. It is shocking how much people take for granted the "simple" action of just rolling over.

Anyway, with the son who is unwilling to make his own breakfast, walk him through the steps but have him do it himself. Make yourself the exact same breakfast and have him mirror you while you talk through the steps. Take no simple movement for granted. Maybe if it turns into a game that will help him, if the problem is just parent manipulation. If the problem is that he just can't process what to do physically, then by walking him through it a few times his muscles will help him "remember".