I do take your point Jess please don't think that I don't.
But, regarding neighbours, it's not an all or nothing approach I'm suggesting. Before people get to the stage where they need all the attention you so rightly itemised above, there are ways we can help. My elderly neighbour once asked me if she 'smelled'. She was so worried about this and then it came out that she couldn't manage getting in and out the bath herself even with one of those aid things. And she missed the luxury of a warm bath. So every Sunday I helped her bathe. Yes, initially we were both embarrassed but that soon went.
When my late MiL came to live with us for her final few months I did commit to all the above. It was hard, especially as she had vascular dementia which made her very confused and aggressive. But I'm glad now that I did it. I hope that doesn't sound like 'virtue signalling' but I do feel very strongly that as a society we ought to cherish our older folks just a bit more.
I know there sometimes comes a point where people really can't do any more and have to hand over to the professionals. And I know several people here on GN who are struggling on that cusp. It's a hard decision, and we can only try our best.
Another silly little ABC game - shops we have loved and lost?
What is a reasonable minimum spend for an online grocery delivery??