This is interesting but it doesn't take into account those of us who have no help.
My aunt, who had no immediate relatives nearby, used to live in a town where seniors were called at the same time every day to make sure they were ok. I don't know of any other place that does that.
I have a friend who I text daily and if he doest hear he checks in but he loses his phone more than any one I know and if I have a problem and he's busy at work I'm kind of stuck.
My aunt was living in Santee (San Diego). Think I'll call my local senior center and see if they have something like that.