I know what you mean Roseleigh, my mother has a cousin who has asked several times to be informed 'when the funeral is' because she thinks she's been left something (she hasn't). She did visit the CH but as far as I know has not been recently.
But I wonder where you have seen these 'statistics', I can't think how they would be collated? I have no idea if I will inherit anything, it depends on how long my mother lives but I'm not expecting to. I am not close to my mother but I visit every couple of weeks to ensure she's being well cared for and to take in toiletries, whether there's any money in it for me is irrelevant to my visiting patterns.
I thought I'd post an update. I've looked at CHC and decided it's a no no. My mother wouldn't qualify. Nothing has really changed. My brother-in-law has been ill and my sister hasn't pursued the care home any further after respite, concentrating on her husband. So at the moment mum is still at home with carers. I've thought about respite at Christmas as last year, mum was aggressive with family around. I don't really want her at ours,she's about an hour's drive away. It sounds all doom and gloom, I'm depressed myself and not in a good place. Rant over