I honestly never thought to ask (until it was too late) if any of our partners had cold sores.
Just about everyone has cold sores, and I never really thought (although now that I know more about it, my feelings have changed) about the herpes 1 transferring to the genitals. Even though I've known since childhood that cold sores are in-fact a strain of herpes.
People kiss all the time, it's crazy, no one things to ask someone for their herpes history before giving them a kiss.... family, swingers, whatever.
Oral HSV1 is thought of as an issue only when there is an open sore, I always teased people about their "herpes lips" taking a very light-hearted attitude toward it.
Take the same virus, move it downward a few feet and it becomes a whole new ball-game.
Sorry, if this post doesn't make sense I'm not trying to make any particular point, I'm just kind of rambling about what I think.