Several weeks ago, a reader asked about the percentage of straight men who attend Jack-off Groups, and I promised to do a bit of research for him.
From my own experience: The military circle jerks continued even after most of the guys had married; they didn't cease enjoying being among a bunch of men to engage in a common, mutually pleasurable activity. Don't forget, there's a social component to it, as well.
It was also a time when masturbation needed to be hidden from wives and girlfriends - because they would get jealous. Seriously. Jealous of a guy's own hand.
"Guys Night Out" afforded them the opportunity, whether sitting on the commode or in the shower, to get out of the bathroom.
The group I attended after leaving the military, about 90% were married and self-identified as straight. I asked the Melbourne Wankers, Rain City Jacks, and New York Jacks if they knew the percentages of straight/married guys who attended. The responses hit a wide range. Melbourne Wankers: 40%; Rain City Jacks: 15% - 20%; New York Jacks: 15% - 20%.
Attendance, however, has gone down in recent years, and those are current numbers.
But, I suspect the reason for that is complex, yet quite simple.