Quick question - do all the kids use the same floor potty? I have a parent that supplied with one for her little girl.... Do I use a different one for another child? Most of the kids I care for use the big toilet with the ring, but some kids are too short to get up on it. I don't really want 2 potties in this bthrm as it's small but I don't know if the mom cares if other kids r using the same one..... wdyd? Tx!