I suppose the argument is frequency of the activity, balanced against the expected skill of the person doing the activity. I am not an expert car driver -- I ju

I suppose the argument is frequency of the activity, balanced against the expected skill of the person doing the activity. I am not an expert car driver -- I just do it everyday. That's different from an F1 driver; such a driver is fundamentally engaging in a much higher risk activity, but they are probably very well trained.