First of all, parents need to educate their children to correctly understand physiological changes. Talking about sex education for children before the age of 12 mostly stays at the cognitive level, just like listening to stories. Because the child's body has not changed at this time, it is difficult to have any personal feelings. But for adolescent children, the physiological changes of sex education are different. Their bodies are changing and they have personal feelings, so they will have a deeper understanding.
Secondly, parents need to educate their children how to protect themselves from harm, because we all know that the developing reproductive organs are still immature and will be injured if they are not careful. Serious injury will even affect the reproductive function in the future, so pay attention to protect your reproductive organs when you are active or playing. Then you need to accept your body and your feelings.