Tough situation, for sure.
Since, as you said, it is the furbabies home and the children cannot follow the house rules regarding the pups, maybe you need to meet her somewhere else with the children, or you go to her house.
Clearly, she has no control over the kids and that could be very dangerous for your dogs. Until the children can mind then maybe you need to tKe the visits elsewhere so it is not a problem for your pups or house.
Of course, I admit to taking a hard line where my dog is concerned and my granddaughter was very good with my pup so the situation has to be what you can live with. Sounds to me like you granddaughter is taking the my way if the highway stance at your house and with your dogs.
__________________ .  Cali  , and Cali's keeper and staff, Jay No, not a "mini" Yorkie - She loves to motor in her Mini Cooper car |