Two things I'm not clear about. Nick's Mum seems to be avoiding/ignoring the obvious crisis. I wonder if she is just assuming, from the little she sees, that the psychiatrist will sort it all out in the meantime, or eventually.
Secondly "She said Jack’s insurance wouldn’t cover an in-home aide" I'm not sure how that would work in the US but doesn't Nana have the means to pay for a cleaner and gardener? Not even live-in, just someone to take some of the chores over. Or maybe Nick is just Cinderella 😀