My father it is hard to tell his hearing is getting very bad which makes it hard to tell. We had him on a trial of hearing aides and he refused them and returned them pretty quickly.
https://www.nia.nih.gov/news/hearing-aids-slow-cognitive-decline-people-high-risk He is a country boy with a gun collection who had neighbours complain he was shooting them in the air one day that was to test to make sure no one takes him to an old folks home. Not had any gun trouble since. He takes care of himself reasonably well though so no one wants to force him to go anywhere, the police were kind to him. His walk has become shuffling and he won't go on real walks and things it could maybe be a early sign of lewy body dementia or may be nothing at all but of course I won't go to a doctor, no one is putting me in a home to die. In addition to myself there are two other siblings of mine who live even closer to him than I do so at least he has that (my other sibling lives a plane ride away). None of us has any plans of forcing him to do anything.
My father in law had a sudden stroke March last year on girls day. Prior to that he was doing great exercising, learned to play guitar and joined a band after he couldn't be a pilot any more just bad luck. He woke up when we spent the summer there last year and was up in a chair and writing (paralyzed in one side) but went back to "sleep" after we left, we wonder how well that "home" cares for him but he gets visited twice a week. My mother in law is terrified of being very elderly alone (she is fine now) so pressure is slowly increasing for us to come back to japan. Right now I have it as a retirement plan (which cheap yen if it continues my american dollars would give us a higher quality of life there) thankfully my mother in law is very young, a lot younger than my father in law (who lied to her about his age until the wedding) she is only 69 and doing well. I could see myself ending up in a musicisgood type situation as I believe his wife wanted to come back to help with her parents.