They're good with pee but there's something about poop where they haven't made the connection yet. We'll let them be naked for ages sometimes to help encourage going to the toilet and they'll go wee fine but it can feel like they wait for a nappy to finally poo in. We've even got a box of hot wheels cars where they can get a prize for pooping in the toilet, they know about it and want prizes but it doesn't seem to get them to do it. We'll just have to keep at it, they know what to do so we just have to keep it up