Proper sexual education from parents can prevent the son from getting misinformation from other sources like the internet or peers. There is a lot of false or inappropriate information out there. By learning from his mom and dad, he can have a solid foundation of knowledge that will help him make good decisions in the future regarding relationships, health, and more. This kind of education also encourages open communication within the family so that the son feels comfortable coming to his parents with any questions or concerns as he gets older.
Teaching appropriate sex - related stories also promotes respect for others. When a boy is taught about the differences between genders in a respectful way, he is more likely to treat girls and women with respect throughout his life. He will understand that everyone is equal and has the right to be treated well.
It helps the son grow up with a healthy understanding of his own body. He will know what is normal and what isn't as he develops. For example, if he experiences normal physical changes during puberty, he won't be scared or confused because he has been educated properly.