In the past, people used to have children at an earlier age, typically after reaching 20 years old. However, in modern society, some individuals have reduced the priority of having babies. It seems to me that the mounting financial burden of raising babies, the fierce competition faced by young couples, and being short-handed when facing the dilemma of taking care of infants are the three reasons for this change. Personally, I believe that this alternation is beneficial for both individuals and society.