This is a family of one generation with only one child. Parents have a home, children have a home, fathers and mothers have a home, and they are not in one place. There are old people on the top and small ones on the bottom, so retirement has become a few perches

This is a family of one generation with only one child. Parents have a home, children have a home, fathers and mothers have a home, and they are not in one place. There are old people on the top and small ones on the bottom, so retirement has become a few old people. Today in small counties, tomorrow in big cities, and the day after tomorrow in the countryside. The wheels rotate once or twice, and a year will pass!