1. First, the burden is too great. Giving birth to a child is not only expensive for Shanghainese, but also a heavy psychological burden. Social competition is fierce, and giving birth to a child also requires a lot of energy and money, such as nursery, school expenses and other child support expenses, which require a lot of investment and not all parents can afford it.

2. Lack of population policy support. Shanghai's two-child policy is not completely unified, and some places have even cancelled it. Family is limited by status and rank, and social welfare has no rules to follow.

3. The threshold of marriage and love activities is high, and the current marriage and love market is very chaotic. The economic situation of most men is generally not optimistic, let alone the possibility of having children, which leads to a great decrease in women's confidence in marriage and childbirth.

It is the street and mass media in Shanghai that emphasize "having fewer children". Such propaganda has prompted many families to think that children are too hard and negatively affected, forming a psychological form of "having fewer children".

5. In a word, Shanghai people's fertility desire is not high, which is influenced by many factors, such as family burden, insufficient population policy support, high threshold of marriage and love activities, and emphasis on having fewer children in publicity.