I suspect the norms also differ from place to place even within a country. I would not be surprised if going dutch is more typical in NYC and the man paying is

I suspect the norms also differ from place to place even within a country. I would not be surprised if going dutch is more typical in NYC and the man paying is typical in, say, Peoria. Certainly, I've rarely encountered a New Yorker who's uncomfortable with splitting the bill. So trying to draw broad enough conclusions to write a universally applicable article about it is ridiculous.