Sex education is not as early as possible. Studies have shown that children begin to have some hazy consciousness between the sexes, which mostly appears at the age of three to four, so they can guide sex education at the age of three to four. Parents must not be ashamed to open their mouths and miss this best opportunity.

Usually children of this age are already in kindergarten, where teachers will let boys and girls go to the toilet separately, which is also a manifestation of sex education. Moreover, children of this age can no longer wear open-backed pants, which is also a manifestation of sex education.

At home, we should also do a good job in gender education for children. For example, at the age of 3-4, girls will find the difference between their parents. At this time, my father is at home, so I must be careful not to expose my body. I can't let my father and daughter sleep together. Children aged 3~4 years old already have gender awareness, so we should divide them into beds in time and briefly introduce the differences between the two sexes. This is the most elementary and simple sex education.

Foreign countries all start from kindergarten, and foreign children know their physical and sexual protection from an early age. However, most of the current sex education in China is based on middle schools.

From the perspective of pedagogy and psychology, although junior high school students are relatively mature physically, they are the most unstable psychologically. During this period of sex education, students will inevitably have certain colors and prejudices, which will play a negative guiding role.

Some experts in China have found that 6 years old is the best starting point for receiving sexual health education. Before children's sexual concept is not adversely affected by society, they should popularize sexual knowledge from kindergarten, popularize correct sexual concept and scientific physiological knowledge as soon as possible, and learn to protect themselves.

Now primary and secondary school students are generally precocious. If children's precocious puberty is not properly guided, it will have a negative impact on mental health. Just like some students in her class are troubled by problems, their learning and thinking abilities decline, their attention is difficult to concentrate, and they are easily tired of learning. Some introverted students, in particular, accept bad social information, have a negative evaluation of sex, are excessively depressed, and induce a serious sense of inferiority.