You only know your wife swapping friends yet you were trying to lead people to believe that conservatism is common in regards to the swinging thing.
What a crock, my guess is that your idea of conservative, is not conservative.
It is indeed very common among the ones we know. And I’ll bet we have a much larger body of data to base our opinion on than you have upon which to base yours.
And what you guess is just that and is of no more value than a beer fart in a whirlwind.
Have a good day.