DS is 26 months, and speaks very clearly. He can tell you that poopoo and peepee go in the potty and that we are not supposed to go in our diapers..
However.. whenever I set him on the potty (either the big potty with a potty seat, or one of those toddler potties) he says, "I can't!!!" He has peed in the potty successfully a few times, and we made a big deal out of it, gave him a small reward, and so on.. but he seems to have little motivation to keep doing it.
So, my main question is this... when do I need to start being a little tougher in my approach? How long should I go with the, "I can't!" answer before I start to push the issue more so we can be done with diapers?