The sensor-based driver assist solutions is what I meant as a secondary aid in my comment above. However, these solutions are reactive and quite partial as oppo

The sensor-based driver assist solutions is what I meant as a secondary aid in my comment above. However, these solutions are reactive and quite partial as opposed to strong preventative measures like alcohol detection-based car immobilization solutions. Some would say that it is a radical measure, but so is electronic speed limiter/governor in all modern cars. I'm well aware of the progress in autonomous driving space (including Tesla's - though, I would argue that Tesla is not the leader in this space; I think that it's Waymo). However, more generally, my point was not about limited fleet use cases, but rather global-scale deployments and massive adoption. That, I believe, is certainly not going to happen soon.