I would say when my daughter turned two, she showed interest in potty training. My husband and I invested in a potty and she was sitting on it no problem. Even though she didn't do anything on it, it was still there for her to try. Then, she lost interest not too long after. Didn't want to go near it and eventually it collected dust. We have bought different kinds of pull up diapers but she had a hard time pulling them down or didn't know what to do with them. I also found her legs were not fitted right in the pants and we had leaks. I did find Huggies Pull-Ups to be the best fitted for her. Training pants are more costly than diapers so we used them for the daytime and regular diapers at night.
