Although young people want to know more about sexuality, they do not feel they have received what they need to learn. In Chinese societies, scant research has solicited direct input from the youth to obtain their views on sexuality education (SE) deliverables. We found research gaps in the lack of Chinese preteens' input regarding SE timing, knowledge perception, learning readiness, and preteens' reasons for obtaining information about sexual health. In Hong Kong, a not-for-profit agency collected data from Chinese preadolescents who expressed opinions through a general survey. This agency surveyed students from 24 primary schools and provided anonymous secondary data for this team to analyze further. Among 4569 fifth- and sixth-grade students (average 11 years old), girls were more likely than boys to seek sex-related information from teachers, library books, and mothers. In contrast, boys were more likely than girls to obtain information from friends, pornographic comics, and the internet. Logistic regression analysis indicated that gender, age, instructional sources, openness to sexual health knowledge, and perceived and actual levels of knowledge predicted preteens' desire to receive SE earlier in grade school. Girls and older students were significantly more likely to report their preference to receive SE in an earlier grade. We recommend that preteens and their parents be encouraged to collaborate with teachers to participate in school-based SE programming. Copyright © 2023 Springer Nature.