What dictates being a man/woman?

Just how the genders are. I know the lines r blurred a bit more, as not everyone just knows how to b a man or woman and just fit into the societies they're in. But generally, there's a way women act n generally, there's a way men act. Generally, men r more dominant physically than women. But this changes too, because women use their "feminine wiles" to dominate men, n sometimes, r perceived as manly due to their dominance. On the contrary, if men submit to women for any reason, some might say they're a bit feminine. No one seems to care what works for others and how they're happy or sad.