[SahAssar]

We are "designed" (via evolution) to perceive and understand the environment around us. The signage is designed to be easily readable for us.

The models that drive these cars clearly either have some more evolution to do or for us to design the world more to their liking.

[hshshshshsh]

Yes. I was talking why Tesla choose to use vision. Since they can't control designing the transport infra to their liking at least for now.