My parents were happy I went Greek. Of course, my stepdad was sort of miffed that I didn't join the same sorority as my sisters, but he got over that
and the fact that my chapter was definitely not the coolest one around when he was in school, so he's fine with it. He was in a fraternity, too, so he understood. My mom was thrilled because she never got to go to college and she never had the chance to be in a sorority. So everything worked out.
My dad, on the other hand...well, that's another story.