Dunno,

good question.

I always ask everytime we go out on the boat if my girlfriend wants to drive and she always declines, even when we're on a slow fat mono.

I think guys introduce their "significant others" to the sport and never get the motivation to step outside the crew niche. I could be wrong though. I'm wildly speculating. And rambling. I'll shutup now before I'm in the doghouse again.