My son just turned 4 years old and I still cannot get him to go poop on the potty.
He has been using the potty since he has been 2 1/2 years old. Pee has never been an issue at all. He wanted the potty and that was that. No training required. Within a day he was fine.
But he hates going poop. We used to be able to get him to poop in the potty sometimes, but now he refuses to poop unless he has a diaper on. His body control is not the problem. He knows the signs and he can control his body better than I want him to.
When he knows he has to go poop he will ask for a diaper. I tried for a whole week to refuse giving him a diaper. He did not get upset or mad, he just did not go poop. I tried feeding him a lot of apples and plums and he still would not go. I was afraid that he would get ill, so I gave him the diaper and he went poop right away and seemed fine with it.
Next I tried to just put the diaper in the potty, but that did not fly. He just looked at me like I was a nutcase :-)
So what else could I do to get him to use the potty like a big boy? I do not want to stress him with this. I can wait and be patient. But I need some new ideas.