Functionalism on FamilyFunctionalism (Kuper, A. 1996.) is the framework of structural theory, which regards society as a complex system of many components that work together to promote the steady and stable functioning of society.On the sociological level, family values inherit functionalists regard the family as one of the most important social sectors. They emphasize the various functions of the family in society, including social continuity (childbirth, parenting, etc.), education, civic development, labor force and stability of society.Jack comes from a grass-roots family. His parents have low income and low education level. They also have the habit of smoking. Before Jack was born, his parents began to eat cigarettes. Jack once told me in an interview that the reason for smoking is also from his family education and background. As a child, seeing the image of his parents smoking has become a must for Jack to do when he grows up. The reason is that he feels that smoking is given the mature and steady feeling of a man reminds him of the role of the head of the family when he sees his father smoking in the living room after he comes home from work, which is also his profound image of his father. Thus, the hidden function appears in the family, indirectly teaching Jack the ideology of smoking.Jack inherits the family concept of smoking, which is also the reason for his addiction. Jack's family education in functionalism influences his thoughts. He is indirectly impressed by his parents' blackboard, which makes him think that smoking is a symbol, which can give people a mature and stable feeling. He also wants to inherit the role of the head of his father's family and form an ideology. Therefore, smoking has become his adult stage the family education level is not high, parents don't realize that smoking is harmful, Health values are different, but it becomes their family's leisure activities, which causes Jack's addiction to smoking.