The difficult part of the contingency planning for me is not the finances and trust. All three kids are capable and willing to handle things on that front if I need them.
What I need a contingency plan for is if something comes up where it’s difficult to live by myself, even for a period of time. I live alone ,with my children thousands of miles away, in a neighborhood where I don’t know anyone. I’m at an age where I’m constantly reminded of this. three of my closest friends have had an event in the last year that impaired their independence. The one with a daughter living next-door to her has quite a bit of time to figure out what she wants to do next. the other two had to scramble to find someplace more workable to live in a very short timeframe.
So I figure the next move I make,whenever it is , is to some form of more communal living. I’d like to put that off as long as possible, but if you shop potential spots the nice ones have considerable waiting lists.