American style pickup trucks are insanely large, and as @notjustbikes noted they’re also increasing common in Europe. One is parked near me, and despite being 30 feet farther away, and in front of relatively large luxury cars, you can see the useless 4 foot truck bed is still higher than the roof of the midsized sedans. These vehicles are a danger to everyone on the road. Pedestrians and cyclists of course but also other road users. These MUST be regulated away before Europe gets the hellscape that is American roads.

@timbray I actually don't see how alternative PROTOCOLS are good.

The point of protocols is that alternatives can work together and you don't get locked into one. Having multiple protocols waters this down.