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When regular cars first appeard vehicles had to be led by a pedestrian waving a red flag or carrying a lantern to warn bystanders of the vehicle's approach.

https://en.wikipedia.org/wiki/Red_flag_traffic_laws

And a countless number of people have been killed.

Real cars were an evolution of an existing technology (the carriage). We replaced a horse with an engine and a steering wheel.

In this case have a machine replacing a human and using non deterministic algorithms to do so.

Automated driving ONLY makes sense on specific, well mapped, sensor enabled, pedestrian free roads. Let’s focus on that use case before we let these things take over our towns and cities.

Such roads exist today, they are utilising two steel rails and are generally named railroads.