There is a group of elderly people who have moved from rural areas to cities, from small cities to big cities, put down their families, and even stopped their jobs to join a new family with one or two children, becoming new members of this family. They not only contribute economically and physically to their children’s families, but also face an aging life; They have been away from their familiar family and social environment for a long time, and cannot have an independent life in the new environment. This is the group of elderly people known as “old drifters“.