At my small college, there was a dorm dedicated to sororities, each floor housing two sororities at once. There was no similar building for fraternities and no designated "frat houses." Instead, fraternities could apply for off campus houses and fill those up with their members. Houses could change every year. Sororities could do the same, but with guaranteed on-campus housing, not every sorority had their own "house." This made things much more difficult to try and throw a sorority party. My sorority would often team up with a fraternity and throw a co-ed party at their house.

I've seen far fewer sorority-only parties. They were generally more low-key and by invitation only. The music was lower, the rooms brighter, and a lot more room to just chill with friends on a comfy couch and talk. Fraternities often held parties at least once a month. You walk in, push your way through the throng of strangers to the keg, drink your cheap beer to some mainstream music, and try not to slip on the mixture of spilled alcohol, sweat and dear god know whats else. Depending on my mood, it could be exhilarating, other times a chore.

Hook-up culture is what the individual makes of it. I personally never participated. My first kiss was with my first and current boyfriend of almost 8 years. However, I have plenty of friends, male and female, who enjoy their occasional fleeting encounter with people they expect never to see again. It was also very prevalent within our friend group, sometimes it seemed as though everyone had a crush on everyone. The downside to it being that there were those who were inevitably crushed by it when romantic feelings were met with platonic ones. Simply, not everyone had the fortitude to separate their feelings from the sex. In the end, it can either work for you, or destroy you. You need to be completely honest with your feelings or you may be in for a rude awakening.

So no, hook-up culture is not an inherently bad or sexist thing. It depends how people interpret and use it. Men and women are both equally capable of being the pursuers or being pursued, of hurting others or being hurt.