I would probably be an ok dancer if I wasn't self conscious about it. DD and I boogie all the time! 
I will dance to whatever is on; but no headbanging/jumping all over. That's not dancing. Come to think of it; that's probably the best kind of "dancing" for me! 
DH and I have danced together a total of 3 times. And 2 were at our wedding.
I took dance lessons for about 5 years when I was a kid. 4 years were Jazz, the first was ballet and tap. My step-father is Puerto Rican, so any get together with his family usually involves Latin music and dancing. I don't participate. DH would never even consider it.
I went to most of the dances in high school. We only ever had Homecoming and Prom though. I think I only missed one Homecoming. I only ever had a date for my senior prom though. I still wish I'd just gone with my friends like before. It was always more fun.