Have the children and their spouses agreed to assign guardianship over to you?
So far. But if that changes, it is fine with me. I am just saying that I will be there to the end for them. Their spouses are welcome to take over or help. I am just promising that I will be there, even if everyone else abandons them. Of course, I am pretty old and won't be able to take care of them forever. But I have promised them their whole lives that I will always be there for them.
Just that I won't abandon them or give up. I will seek the best medical help I can find, if they ever need it. As I get too old to take care of myself, they will do the same for me. We have discussed this many times, way before the Terri S case came up.