We're at least a decade away from that.
People work all over the planet during all seasons, don't they?
(L4 iirc is hands-off but someone in the driver's seat (which must therefore exist) in a fit state to take over if necessary - no sleeping on the way in, no drinking on the way home.)
Level 2 and 3 are the mostly-automated version, and they differ in how much notice they're supposed to provide and how much attention they require.
The statistic I like to use is that the train tunnels underneath the Hudson River into Manhattan move more people than all of the road crossings into Manhattan combined. It's probably cheaper in the long run to invest in better regional rail systems than it is to to keep widening highways; people drastically underestimate the costs of highway construction.
I haven't heard this. Wouldn't self driving cars use the same road infrastructure we already have?
Self-driving vehicles are also going to come with the innovation of having zero occupants as they navigate somewhere to park. And if people want to replace existing mass transit systems with self-driving vehicles, that's going to require a lot more infrastructure.
Let me use my phone or watch videos on the highway. I’m okay with taking over with a small amount of warning. I’m also okay doing all non-highway driving.
I just want something that can keep me in my lane and avoid ramming the vehicle in front of me. If I need to drive at the start and end of my trip, that’s okay.