Both my parents died from horrible terminal diseases (I'm putting that out there because I have been through this), I was at the time and adult. I can understand what Kate said about "feeling unloved" at the very end, I would drive home crying from my mum's hospice bed because I thought she hated me, in reality she was dying and just didn't have the energy to respond.
This was some time ago and not in London, so I'm not up to date on care fees, but FOR THE SAKE OF HER EXPLOITED CHILDREN for £4k/week, couldn't she have put him in a nice care home, got lots of rest so she could do her well renumerated job, and taken the children for regular stress free visits with Daddy? They can do their homework in peace, without medical emergencies going off in their faces. Everyone can calmly go about their business knowing that Derek is well cared for. She would have saved thousands on converting the house.
I'm sure it's lovely that they got their picture taken cuddling up on Daddy's hospital bed and sold to multiple news outlets. But my Dad's illness was quite terrifying, even as an adult child. We were incredibly stressed and the only respite we got was when a nice volunteer dragged him off to the local hospice for a bath. Derek's illness was something of the "unknown", it was similar with my Dad. "How bad is it going to get?" "How far down is this going to take us?" "What's next?" Dealing with a terminally ill person is not easy.
They must have been terrified to come home from school, not knowing what to expect, what might have developed over the course of the day, or just the general day to day care - not have to eat your cereals staring at your dad's catheter bag?? It's very sad if she felt she had to be seen to be caring for him at home due to the whole world judging her, it's equally sad if she decided to keep him at home because that would facilitate the cameras and attention. If it were me, I would definitely protect my kids, put them first. I don't know what to say, the whole situation is very sad.