In China, an underlying tension runs beneath the surface of everyday life. Many young people grow up carrying expectations shaped by demographic and social change. 

China’s One-Child Policy (1980–2015) was introduced to curb rapid population growth. The generation of 独生子女 (“only children”) became a defining social reality in urban China, leaving lasting personal and psychological traces for those who grew up without siblings, as well as for their families. Once implemented, the policy caused birth rates to fall sharply, and the population began to age. What remains is a demographic imbalance often described as the “4–2–1” structure: one child, two parents, four grandparents. The long-term trajectory continues to unfold: by the end of the century, China’s population is expected to almost halve, from around 1.4 billion to fewer than 800 million people - a reversal on a historic scale and a profound challenge for the country.

At the same time, a deep-rooted preference for sons shaped many lives. The policy contributed not only to a stark gender imbalance, but also to documented cases of discrimination against female infants, including abandonment and infanticide. Beneath the surface of demographic engineering lies a history of intimate trauma shaped by state intervention in private life.