WL, very thought provoking and I could identify with each category. I think I have known a friend or relative that would fit in each situation, but that's what happens when you approach being as old as dirt.
If I may, I'd like to offer you my thoughts on one topic you missed. That would be 'futility.' That would encompass those who have totally lost one or more of their senses, bodily control, through paralysis, accident or amputation, or mental ability and literally gives up, because there is no longer a quality of life. Otherwise, I found it a very emotional journey through the situations you described.