Obviously, you've never met my mother or my father.
I'm kidding, of course, but only half-kidding.
I've seen my father a couple of times in 40 years (and only once or twice a year before that). I have no idea where he is or what I would do if he showed up at my door in need. I'm sure I'd try to help in the short run, but as for saying "Move on in, Dad, and I'll take care of you in your final years," I don't think so. He certainly never felt obligated to help any of his four children when we needed him.
Fortunately, my habitually nasty and dishonest mother was a state worker and has a pension plus life-long health insurance that allows her to live in a retirement home. I have helped her during a few financial emergencies (because she had squandered her pension money), but every penny I spend on her comes out of my own retirement funds and those of my husband, thus increasing the potential burden on our children (whom my mother doesn't recognize because they are my stepchildren). If Mother were indigent and deposited on my doorstep, I wouln't harm her, but I think I'd seriously consider suicide.
So my point is that while I deplore abandoning the elderly, there may be more to these stories than meets the eye. It's also my understanding that public services for the elderly have been drastically cut, just as services for the poor and mentally ill.
(BTW, lest this post seem a tale of woe, I should add that I had four wonderful grandparents; I have lovely aunts, a devoted husband of 30+ years, wonderful children and perfect grandchildren. Plus a couple of teachers who dared to "get involved" when I was a desperate teen and remain lifelong friends. And also a number of close friends whom I include in my "true" family.
So no tragedy here, but I don't get all mushy at the thought of Mom and Dad.)
Yes, I agree and hereby nominate this post as TMI post for the month!