[cben]

If we'll use them as "self-driving taxis" more than personal cars — if you're not attached to a specific "your" car — some nice things might start happening:

(1) multi-modal mass transit/car mixing becomes more attractive.

(2) transit can optimize for high-frequency mini/microbus formats rather than least-number-of-employed-drivers. this is less optimal from road-occupation POV but can be a win if it makes more people actually use transit?

(3) required parking space drastically decreases. Reaping the benefits will take a LONG time, but we'll be able to go back to denser cities?