Why does there have to be sooo many rules in trying to date or get a guys attention?

I used to hear that guys like women making the first moves, nowdays I keep hearing that the woman is not supposed to make first moves or to even show much interest. And I read all this stuff about how you're not supposed to text or reach out first, let them come to you, let them plan dates and everything else. And it does seem anytime I want to go do something on MY time. The guy never wants to, sometimes I have to wait weeks or months to hear back from a guy too. It just seems like pulling arms and legs to try to get things going. Why do we girls have to just wait for the guy in every situation??