I had a friend who was put into a coma. He said goodbye to his kids and went to sleep. He died within about 3 months. He had lung cancer and could barely breath. It’s what he wanted. This is done all the time here in the US.
That has to be an expensive way to meet your demise, I would think. Three months it took. Three months of constant care and monitoring. I presume this was done in a hospice. Most are not cheap. Maybe some of the costs would be covered under certain insurance plans. I do not judge those who do this. It is their life and their family to be considered, not mine.
It was his choice and for him it was the right thing to do.
I certainly support his decision.