These systems are definitely coming, and probably faster than we think. A lot of the driver (pun intended) for this is eliminating labour in commercial applications.
That Tesla driver died in 2016 mostly because they put too much faith in the technology - a quote from the BBC article touches on why I think this is going to be a continuing problem in the short-term:
"But while there's no doubt that fully autonomous self-driving cars are on their way, there are concerns that many of us may confuse assisted driving technologies - cruise control, lane keeping, automatic braking, collision avoidance systems and so on - with full autonomy.
And this could make us dangerously complacent."
Human nature..... the same complacency that I see here in Winter that puts 4x4 vehicles (unintentionally) 100 yards off the side of a major highway will create "issues", up until these systems reliably hit full autonomy.
There's an ancient joke about the guy who bought a new Winnebago, then crashed it the first time out because he put it on cruise-control then went in back to lie down. Today, that just sounds like a stupid joke, but does illustrate the perils of not understanding the limits of technology.
Rgds, D.