This is arguing that because humans are stupid and biased, they will believe they are better drivers despite all the evidence to the contrary, and therefore, a

This is arguing that because humans are stupid and biased, they will believe they are better drivers despite all the evidence to the contrary, and therefore, a solution needs to be close to perfect so that humans stop being fearful. We have seen this before with autopilots in aircraft and ship, elevator operators and so on. All it needs is time and adoption, not perfection, and as adoption increases, the roads get safer and safer, bringing us closer to the ideal, and as time increases, the closer we get to adoption.