Sex education for preschool and primary school children is extremely necessary and important to help children protect themselves when the problem of pedophilia and sexual abuse in children is increasingly receiving attention.

Currently, many babies are just toddlers but are very curious about the genitals and have self-stimulating behaviors. Boys may have the behavior of pulling and contracting the penis, while girls rub their hands on the genitals. Many parents feel confused and awkward, even unsure of what to do when their children exhibit these behaviors.