There are several reasons why the family position has changes in modern life. Firstly, a few decades ago, there were normally three or four generations living under the same house. However, nowadays, nuclear families and one-person households are becoming increasingly popular. The cost of living has increased significantly, which prevents people from having too many children. Secondly, fathers traditionally play an important role in pillars, while the job of housework is done by mothers. Nonetheless, many women in today’s society have the opportunity to have qualifications and pursue their careers, and family financial burdens are now shared by both fathers and mothers.