I'm 48. Lost my virginity when I was 19, almost 20. In all that time, only two men have bought condoms and used them regularly. Of the rest, maybe one or two asked me what I was doing for birth control. One man nudged me to get on the Pill, which I stopped when the relationship ended. Of the rest... they never even asked. Not one word. I guess they just assumed. Lucky for them, I never got pregnant.
A while back, I read an essay on the web by Mr. Radley Balko, entitled, "Be Careful Where You Come," dealing with many of the issues in this article. I thought it was good advice, and loooong overdue. If a guy really wants no-consequence sex, maybe he should plan things a little better, and invest in condoms just to make sure.