Generally speaking, the earlier the science of sex education, the more reasonable it is. This is because sex education is not only the education of physiological knowledge, but more importantly, it helps children to establish correct values and moral standards and protect them from the threat of sexual harassment and sexual assault.

Appropriate sex education can be carried out at an early age, and children can be communicated in appropriate ways and languages. In addition, appropriate information and education can be provided according to children's age and intelligence level. As children grow older, the content of sex education can be deepened gradually.

Of course, the science popularization of sex education cannot be completely completed by schools. The cooperation and support of parents is very important, especially in providing family education. In the whole process of sex education, children need the encouragement and support of their parents to ensure that they have a correct understanding of sex education.

Generally speaking, the popularization of science in sex education is a continuous process. No matter the age of a child, it is necessary to provide correct and appropriate information in many ways.