Why is statutory rape not considered a crime when it's a younger boy in the eye's of society?

Sorry. He didn't perform due diligence or he would have discovered her true age. As far as the younger boy being raped and you think that Society would not consider it statutory rape, you are right. For one thing the laws were written with young females in mind. There is still the double standard in existence even if we disavow it. The female may be physically injured whereas the male child would not.