My plan is to begin PT T at 2 1/2 years old..... BUT because he copies everything his big brother does, T is now going to the big potty a few times a day asking to go "pee pee". He climbs on the step stool and has proved to us that he can go potty like his brother! He's been doing this consistently for a few weeks now, which is great... but if he's going to go in the potty, I'd like switch his diapers to training pants and I'd like to teach him to pull his training pants off/on by himself. Unfortunately, the smallest training pants out there are too big for him. He's barely 20 pounds and is small in stature. Anyone have any recommendations or things that I could consider?