Go up to Montana or Wyoming or wherever and let them play outside. Plenty of fresh air and no one around.
I also see a clear difference in Kim’s affection/interaction with the older two and the two the surrogate delivered. I DO NOT follow her on Instagram, just here, so I may miss a lot, but she interacts more with North and talks about Saint more than she does with the other two.
The house is so damn big, she could disappear and they would believe she left the property. And even if Kim is working at home they can learn boundaries...mom is working and you’ll have to wait. This v