If you look around yourself, you will find that we are fast shifting to a social setup that emulates the Western culture. Kids grow up, start earning or get married, and move out of their parent's homes these days. Youngsters rarely choose to continue to live with parents. This is not entirely a bad thing. For one, considering the lack of space, apartment culture, and 2 kid norm in the cities, it is hardly possible for everyone to continue living together forever! Also, elderly parents also deserve their own space and privacy after retirement.