Which is the right age to impart education to children?

When child is starting to ask you a question related to body. Usually just before they hit puberty. Every child is different some may be curious around age of 9 or some will be around 12 and rest will be in between that age. Before puberty or during puberty children display some sign like they go for privacy they become reserved and take less interest in family and more in their friends. They also spend more time doing their hairs and their focus more likely on to themselves trying to look cool. So look for those sign and start giving them education. Treat them as friend rather than a kid. Spartan