The birth of a baby is always a joyful event, but in a Chinese community it also has an important social significance because of the special position of the family. Because the family is the primary unit of the Chinese society, the reproduction of offspring to increase the size and thereby the influence of the family assumes greater importance.
Bu xiao you san, wu hou wei da, is a much quoted Chinese saying. This means, “Of the three unfilial acts, the greatest is the lack of posterity.” In other words, it is the duty of the members of the family to bear children and ensure the continuity of the family line.
(Extracted from “Chinese Customs and Festivals in Singapore” handbook published by SFCCA in 1989)