Our first daughter was potty trained by about 15 months, but our second waited until after she was 2. The reason it took her so long is that she would wet the training pants, take them off, put them in the dirty clothes, get herself a clean pair, and I wouldn’t even know she had done it until I stepped in the puddle!

Now they don’t even start training until after 2, do they? It really just depends on the individual child. One reason ours trained earlier is that they weren’t in disposable diapers, and cotton diapers and training pants feel horrible when they’re wet.