One of the things that really surprised me in North America was the tradition of the Ladies' Night.
In my culture, men are a lot more passive and less outgoing. You don't need any gimmicks to get women to visit places. They do it anyways. For decades, all public places have been filled by crowds of women and maybe a few men who were dragged there by their wives. Men are the ones who have to be lured into public spaces. Any event or gathering always suffers from a dearth of men, not women.
Of course, any kind of gender imbalance in this area (as well as in any other) has a host of negative ramifications and a couple of positive ones.