Traffic segregation, car free zones, public transport, lower speed limits, car size based taxing, stricter driver license conditions, three strike limitations, temporal license suspensions schemes, these are all measurements that would reduce car accidents just as much, and could be implemented within the next week anywhere at very low cost. It's not a pipe dream, it's a lack of political will.
It doesn't take several billion dollars of R&D onto a tech that will never work outside of 1% of the road network and could actually not reduce cars accidents at all once it faces real world conditions.
If the goal is to reduce traffic accidents, this is the most expensive, slowest and inefficient way to do it.
EDIT: Autonomous driving will solve traffic and traffic deaths as much as EVs are going to solve global warning. They are plausible lies that techno oligarchs use to distract from the real causes of the problems they purport to solve and are actually just new money funnels for the oil industrial complex.
I once watched two idiots online argue between using sociopathy or psychopathy to describe a fictional character. Is there a difference? yes, kinda. Does it matter? no. It was mostly harmless, but psychologists avoid actively to use either term ever, both in discussions of cases and official reports. We stick to the definitions and terms on diagnosis manuals, and we focus on describing symptoms mostly. Diagnosis are long winded and arduous decisions that require observation, tests, logical argumentation about applicability of criteria. The goal is to help the patient, diagnosis is but a tool not the end goal. Either term appear exactly once on the DSM-V, and they appear together on ASPD.
But people love to argue online about asinine topics.