[petercooper]

I agree it could be any of those things. Observationally, though, I concur with the doctor based merely on the lack of women I see running across the road in front of my car, skateboarding, BMX biking, base jumping, or generally pratting about in public compared to men.

[rbanffy]

My point is that the statement of a fact cannot be considered sexist. My own observations confirm your observations. Among my friends who parachute there are about 20 men and 2 women. This ratio is much higher than the overall ratio of men to women among my friends.

More observation than ours should be made before we conclude men have a higher probability to engage in physically dangerous forms of entertainment, but I would say it's a good bet they do.

At least in our society.

How much of it is nature and how much is nurture is what seems controversial.