Currently, law is the dominant regulator of public relations in society. Along with the development of legal regulation, family law was formed and improved, covering an increasing amount of social relations. Due to the development of the production capabilities of mankind, gradually more and more people began to gain access to an increasing amount of material and social benefits, and this was reflected in the distribution of rights and responsibilities both within the family and among all people in developed societies. In the 21st century, the problems of equality between men and women are perceived by Russian society more and more acutely. Following the pan-European trend of protecting women’s rights, based on the ideas of feminism, more and more attention is paid to the ideas of self-realization and hedonism, which has already affected the development of social relations. The egoization of society equally affects the behavior of women and men. The discussion about the balance of rights and legitimate interests of a man and a woman is now increasingly reduced to finding benefits for a particular social group, which destructively affects the institution of the family.