You’ll be appalled. Germany has a notion of “Allgemeine Betriebsgefahr” which encapsulates the general danger of operating dangerous machinery. For a car/bike accident, the default minimum damages split is at least 20% for the car, even if the driver has complied with all rules. In the Netherlands, it’s even more strict: accidents between cars and anyone below 14 are automatically considered 100% the drivers fault for damages, unless you can prove that the accident was caused deliberately and maliciously by the child. For accidents with > 14 years olds, it’s still at least 50% automatic damages, unless you can prove reckless or deliberate behavior.

This is intended to reflect the inherent danger of driving a heavy machine in a public space.

> That's just not possible to solve in practice.

It is never a necessity to drive so close to people that 10km/h is too fast to notice someone who may veer into the path of your vehicle without you having the ability to stop. Likewise to drive at a speed at which someone could appear from behind a nearby obstacle leaving you no time to react. It is a convenience that most people assume they are entitled to - largely due to it being codified in law (there are lots of things we do that are like this).

You may consider it to be a necessity, and I would have once too. But I never do this now. I gave up the convenience - something I couldn't have done if it was a necessity.

I understand this is not a choice everyone feels free to make. But it is a choice.

I'm not talking about the cases where you have any choice about what's going to happen or your safety margin. A person jumps from a place fully obstructed by a truck, 1cm in front of your car - it doesn't matter how slow you're going - you're going to hit them before you register what happened.

That is why you don't drive past busses parked at a bus stop. There is always someone late for class or work, running out of the bus, and then across the street behind or in front of the bus. I'm even slowing down if I'm in the opposite lane meeting the bus because this happens so frequently. And the law (here in Sweden) says I should drive no faster than that I can stop on the road surface I can see. And that I have to antissipate people jumping out in front of the car from behind obstacles. Busses are luckily pretty high from the ground so you can see legs sticking out under it, this makes it a bit safer if you remember to look out for them.

You're assuming you've always got the choice to keep the distance. Sometimes you don't. If you get in a tight alley where you have to pass a truck, you can't do it differently. Whatever safety system you use, one day it either won't help in the situation, or you'll forget about it. Overconfidence in your control may give you a really bad lesson in humility.

You can also see the recent video of a Tesla avoiding a person falling onto the street and crashing into another car. There's no reason to keep the speed lower in that area, no extra source to be away from the sidewalk and no time to react to the change.