Apple already shipped attestation on the web, and we barely noticed

One interesting (to me) thought is that while HNers are generally worried about what we can lose here (in the curated world) many non techies are likely to see such a bifurcation in car transport.

At some point soon self driving cars are going to get good enough that they can be used on many roads and cities - but I seriously doubt they will be good enough to be used in a mixed environment (pedestrians, human drivers, snow ice etc). So there will be a push to have self driving cars (convenient taxi style) on isolated roads - sort of a weird inversion of pedestrianisation. Maybe Barcelona style super blocks with only 15mph self driving cars allowed? I don't know - but the impact will be people who used to drive their petrol manual cars around town find parts of town locked off. And it's not anti-car it's anti-freedom-car.

Just a passing thought

We already have that in the form of public transport. The reason people get cars is because they want the convenience of door to door transport. If self driving cars cannot do that then people aren’t going to bother with self driving cars.