Not because they would be tempted, because they didn't even want the accusation to be possible.
I'm with you there. I don't want to be alone with a teen for the same reason. The paranoia is rampant, especially for gay guys.
But dude, can you really see yourself dating a high school sophomore or junior?
When I was that age, I though the 19-20yo that would hang out with us was old and weird. But he had a car.
That's just it. I don't make a point to hang out with teenagers and I wouldn't seek something like that out so it's a fairly unlikely scenario. But if a guy were of legal age and seemed to have his head screwed on really tight, I wouldn't consider it a big deal necessarily as long as expectations were clear. I'd prefer someone older with more potential for a real relationship so it would just be for fun. I dated a high school senior (legally, mind you) for a short time when I was twice his age, but
he found
me (with a Facebook app) and asked me out and I had no idea when we met that he was that young and still in high school. He didn't seem it. Also, he was about to graduate and go to college out of state so it was clear to both of us from the start that it was just temporary and for fun, and it was fun.