First off, I would ask that the parent pay part of the cleaning for the part where their daughter peed on your new carpet. That's not fair to you.

Secondly, I've seen it happen where children are as young as a year that are potty trained. If you want, PM and I'll send you a document on Potty training.

The rules here are and stated in the manual and contract:
I will be more than happy to assist with toilet training once the child shows signs of being ready and the routine has been established at home for two weeks. Once the training has been initiated at home, parents are asked to provide easy to remove clothing and extra training pants, underwear, and socks!