IMO, the biggest problem a Parent has, is themselves. Once you decide this is it, do not put a Diaper back on the child. That just lets them know it's OK to potty in their pants here & there. It's so easy to say, "Well, I just have to run up the street, so I'll put the diaper on for the trip" Big mistake! My Son trained himself at 2 1/2 years old. My Daughter had to be trained at 15 months, because she was getting rashes all the time, so the Doctor advised training her early. I let her go bare bottomed for the most part, but I bought some terry training pants for her, and we made a HUGE deal about the "Big Girl Pants". When she was bare, she would go, and seemed like she didn't know what was happening. We'd clean it up, and throw the paper in the toilet. After about a week, I noticed she would look down, and then go. That's when I knew the Brain & the Bladder were in sync. Just know this, your child won't be going to School with a diaper on. Eventually they ALL train.