We go to the clubs quite often (2 or 3 times a month on average) and in our experiance somewhat less than half of the people use condoms regularly. We have found that their is three types of people;
1 - Those that insist on condoms all the time.
2 - Those that will use them if requested.
3 - Those that won't play if someone requests they use condoms.
The Biggest group is number 2, then no 1, and finally group number three is much smaller (I only know 3 or four people in this group). What is interesting to me is that I noticed that their are hardly any long time swingers in group number one and all the people we know in group number three have been swinging for 10 years or more.
From this post no one would probably ever guess that we often analyze things to death.