I think it's less common today, where one bad choice can be a death sentence. When I was a teen, it was almost everyone and anyone, with near impunity. Today, it would be a different story.
Hell, when I was 17, it was with a cops wife, one summer night, while he was working night shift. Obviously the night stick was at his house. Buwahahah!
Anything we could catch back then was cured by penacillin. :Q
Fortunately, I never caught anything.