This system has many advantages. Remember that Westerners are usually very independent; they like to do things for themselves. When their children finish school, they are usually ready to move into a house of their own. this is true for the parents, also; they want their children to begin making decisions about their own lives. Many people in America would think it's strange for a grown so or daughter to live in the same house as the parents; they might say that the children are too lazy to get a house of their own.