Like seriously, cars are such an irrational system it is no wonder it never really works in practice. Every city that goes the car-centric route ends up as a inhabitable shithole where people cannot drive anyway and have to spend hours stuck in traffic or looking for parking.
I guess an argument could made for a responsible motorcycles, at least people could be carefull if they find themselves in similar danger to a pedestrian.
I think we could have certain areas to allow unrestricted speed for people who want it, but for common commute paths I don’t think that’s necessary