hook

I don't know if this is out of topic.
I went to Reno this weekend. I my way there, I saw a lot of posters that advertise restaurants, bars and club are using women pictures as their main image. In most of those ADs,  there are two women seems have fun there. In addition to that, in casino two tables are playing beer bomb, the table with women have more people watching then the one with men only. Why this happened? The restaurants, bars, clubs, and beer bomb are all targeting both men and women, but why the one with women seems more attracting?
I imaged all these things with men being promoted instead of women, some how the image of the places changed and I don't feel like going there.
I believed this is the rule our society shaped us that women are better using as promotion skills. More women means more fun, better food; however, men are representing messy and low quality of food. but isn't there is a stereotype that best cook are male and women are good at easy family food instead? So men should have a better taste of food.  I get in doubt on the stereotype about men's and women's jobs?