While I have never had a discussion about it I know for a fact that my parents swing. Ew, ick, gross. In fact, I have to admit that it turned me off to the idea for a long time. I can honestly say that I don't ever plan to have a discussion with my parents about it. What they do is there business and I don't want to even think about it
My children on the other hand are still very young but I don't see myself ever talking to them about it either.
Just my .02