Is the date of birth destined to be a boy and a girl?

I study the Book of Changes. But the date of birth is not absolute. There is a certain accuracy. High-level people have a high correct rate, but you may not be able to touch it. Different people have different opinions. Just one person. Or a woman. A wild guess is half right. If the birth of boys and girls is influenced by the eight characters, it's your fault. I ching is about nature. You just have to do it on purpose. That must be a problem. These eight characters can be used as a guide.