My MIL didn’t have some of THE most expensive real estate in the country, but she did have more than enough home value to pay for her care but she refused to sell her house. She didn’t have the money to pay for the in home nursing care that she needed and so, lucky for her, she had 4 children living locally and my sister in law was willing/able to quit her job in order to care for my MIL full time, but that’s not true of everyone. Maybe this is the family looking to preserve their inheritance and not pay anyone to do the work. Maybe the family lives 15 minutes away and can’t be bothered. Or maybe the family have jobs and kids and their own lives that they can’t just abandon states away and mom/grandmother refuses to sell the home she’s lived in forever. You can only get a conservatorship and take control of their assets if they’re mentally unsound, but plenty of people become physically in need of care before they’re mentally unable to make decisions for themselves. I still wouldn’t provide elder care in exchange for free rent, but just because someone can afford top tier care for a parent doesn’t mean the parent is willing to liquidate their assets to pay for it.