Its not an easy thing for children to go thru. We have been working with my son since he was like 17months old. We started early because he was showing all the signs of readiness. So now that he is almost 22 months old, he is still having some potty issues. He will sit down and go #1 and #2 with no problem on it, but the problem we do have is him letting us know when he has to go. Hopefully we can get a break-thru on all this!!