I guess Tesla is pushing the envelope in the USA for Self Driving Capability: If the functions still require a licensed driver then there's no need for a new law: Such as: standard cruise that requires a driver who knows how to brake. Then Tesla expands that principle to TACC. The system can brake while on cruise but sometimes the drive still needs to intervene. Then Autosteer, then so on and so on. My guess is Tesla Robotaxi will still be legal in the USA because it will still be "beta" that requires a licensed driver so it'll be "supervised Robotaxi" until the steering wheel and pedals will be eliminated. Other countries are stricter maybe because they think it's a slippery slope between human and machine control and the line might be blurred: Who's driving the car now that Autopilot can brake and steer? Thus, they might want to create new regulations for Autopilot such as German who first objected the Autopilot but it had to back down because it's under the European Union and had to follow European Union's rules. Overall, I think scrutiny and cautions are good because I certainly do not want another Boeing 737 Max debacle!