What is masculinity and does it have a function? do MEN have a certain function they need to fulfill to be considered a man by both men and women?

hey guys, i was doing some research and the idea occurred to me that masculinity and men may have specific functions that need to be fulfilled for a man to be viewed as a man in the eyes of both men and women.

some of these functions are obvious, such as success in sex, violence, and value, but others might be more subtle, such as success in honor, leadership, and psychology.

in your guys opinion, do men have to function a certain way to be considered a man? do men have to fulfill certain roles? if so, what roles are those? thanks.