[armada651]

> 28% of vehicle fatalities in Amsterdam are cycling related. Deaths do happen.

Of course, none of those behaviors are safe. And mandating lights, a helmet, high visibility jacket, kneepad protectors and a license plate would make a cyclist safer. (And lights are mandatory even in Amsterdam)

But it would also discourage people from cycling by making that mode of transportation even more inconvenient than it already is compared to the car. And so because, as you noted, humans seek convenience; they will take the car instead.

> But none of this explains why cyclists bike like a*holes in every country, which is the point I was making.

Again it's self-selecting, since there is no bike infrastructure and you ride in between large trucks you have to be very assertive in traffic. Which tends to select for the more stand-offish types.