I can only give you anecdotes but all of my grandmothers and great aunts have friends and frequently go out with them. I'm not trying to argue with you about the pitiful state of elder care in the US though. I agree fully.
Depends on the person too, my 90 year old grandmother still lives alone in her large house and is so in touch with her neighbors that she has someone that mows her grass, someone that brings her mail up to her doorstep, someone that does her weeding, someone that does her shopping, and on and on. I'm always amazed by how many people just volunteer to do stuff for her, it's like a superpower. She is a pretty unique individual though, I think most elderly individuals just slip into a pit of isolation.
I am fairly sure its from a generation which was very attached to their spouses. They probably met their wife/husband when they were 18-20, and In my opinion lot of these men above 75 were suffering from death of their spouse or a good friend that they spent 2/3rds of their life with. Men are more vulnerable to emotional loss at that age and they are probably less connected with kids while women may just be holding on for seeing their kids even after the husband has died.
Its even strange that they have 200k employees and yet they couldn't even have like 20 people on this site to proof read it? And they expect millions of people to read it. MS leadership keeps making bizarre decisions.
I think personally I can compress $1b into 0 within a week, but $1tr would be a real challenge. Another thing I should point out that I don't support compressing people (for now).
I do find it quite fascinating we have reached so many different parts of the world and still maintained tiny bit of culture from back home. We have historically avoided Latin America even more so than Africa, so it is even more surprising.