The holidays makes sense as prime dumping time. Everyone's together for X-mess or Easter or what have you and they see just how bad Granny really is and decide she's too much of a burden, so they leave her off at the local ER. If she's senile, she won't remember her relatives' names, so the staff can't call the family and tell them to come back and get her.
I'm kind of torn on nursing homes versus family caring for an ailing elderly relative because having to help care for my own grandma when she was in the throes of dementia and Parkinson's is what led to a wedge being driven between everyone and why I am not "allowed" to speak to my aunts, uncle and cousins. Even if you really truly love someone, keeping them at home to care for them is not always the best option. In my grandma's case, it was one of her children demanding that she not go into a nursing home because of all the things she did for everyone, so we should ALL take care of her. Never mind that Grandma didn't even know who any of us were at that point, and we were not equipped to care for her. Sometimes it would take over an hour to get her to the bathroom...which was 5 feet away. She would just stand in one spot and tell us,
"C'mon I gotta go pee!" but I guess her mind couldm't tell her legs to walk.
My relatives and I struggled to get her to move, but at night, she tapped into some kind of energy source and would walk around the house. She'd try to go in the basement (which had slippery painted wooden stairs) and we'd have to argue with her for an hour or two, trying to tell her she doesn't need to go down there and she felt she did. Or she'd walk up to the second floor where it was really warm and say she couldn't breathe, but couldn't get back down the stairs and my cousins and I would have to call someone to help us get her down. Anything we put up to block her from going upstairs she found a way to move. More than once during her walks, she'd fall in the middle of the night and I'd have to call someone to come over and help me pick her up.
I just think she would have done better in a nursing home. Her house was just too full of stuff that could cause her injury. I'm sorry, but if Meemaw and Peepaw have Alzheimer's and don't even recognize their family anymore, I don't see the problem with a nursing home. They don't know it's their family busting their asses for free to care for them, so what difference does it make? And it's painfully obvious that having children does not mean you will have someone to wipe your ass in your golden years - nursing homes are full of parents and grandparents whose family don't even come to visit them. The best you can do is not be an asshole to your kids and hope they put you in a nursing home with running water.