Sex education is very important, but it may be too early to implement it from kindergarten. In early childhood, children's cognitive ability and gender concept are not mature and perfect, so it is difficult for them to understand and accept this knowledge. In addition, such education may also make children feel the existence of sexual behavior prematurely, leading to some unnecessary doubts and anxiety.

In kindergartens and primary schools, heuristic methods can be used for sex education, such as discussing health, personal safety and rights, and cultivating children's awareness of their own bodies and protection. We can also carry out gender equality education and feminist education to guide learners to gradually establish correct and respectful sexual concepts and values.

Usually, after entering junior high school education, students gradually come into contact with all aspects of gender knowledge and how to protect and safeguard the health and rights of themselves and others. By the middle school stage, students' cognitive development is relatively mature, and they can understand and accept broader and deeper sexual knowledge. At this time, systematic and comprehensive sex education can help students to establish a correct concept of sex, prevent illegal sexual behavior of teenagers, improve their sexual health and quality of life, and be conducive to the overall and healthy growth of teenagers.