This is where cryptocurrencies can come to the rescue at least when it comes to money. I have read about this type of abuse in the USA. In an article about it, it was said it is mostly a thing in the sunny states in the south where a lot of pensioners move.
This is why it makes all the sense in the world to have a more close-knit family unit that includes the grandparents, too.
Yes, other cultures have more inclusive familial ties. Multi-generational families living together for longer periods of time