When you were a child, your parents wouldn't give you sex education at all, but sometimes I wake up and see it. Dad sometimes jokes about this topic. This is enlightenment. When children chat together, there will be communication, especially when they are 10 years old. Everyone knows that there is no need to attend junior high school physiology class.

Now there is knowledge about physiology in textbooks. Some teachers may not talk about it, but most teachers will briefly talk about it. Even if the teacher doesn't say anything, the students will read these physiological knowledge privately (children in this period are very curious about physiology, so they will focus on learning the knowledge about physiology in textbooks). The physiological knowledge in the textbook was enough for the children at that time. If parents explain too much and find that it is not as simple as the textbook, they may collect more sexual knowledge (they may be exposed to taboos that should not be exposed at that age) and even try it themselves. So I think this knowledge is the best for children, and the physiological knowledge in this textbook is enough.

But parents need to pay attention to one thing:

Although I don't recommend parents to educate their children about sex, I can talk about the harm that sex brings to their age (in this era of Internet explosion, children will gradually understand when they are old). But they often ignore the consequences, so the most important thing is the harm brought by popularization.