Next big problem is global aging/retiring population which needs daily care like medical/food/being busy/mild temperatures and everything is expensive. It would be a great thing if India can start initiative to bring foreigners retirees on scale. This is a win for all, their governments can pay less pensions, which is indirect revenue to India via jobs. Their kids are independent and don't see them regularly. So they can visit India as a vacation once in a while which brings tourism to india.