I don't like this idea because people would lose jobs possibly because of it
As far as jobs lost, I highly suggest people think about how automation will effect the industrialized world as a whole. There's a fantastic video on
youtube called "Humans Need Not Apply" that explains this much better than I ever could.
Again, there are so, so many issues with these vehicles, and so many obstacles as to why it will be near impossible to fully implement (in the grand scale, obviously far easier to implement just within Disney), at least anytime even remotely soon. But, this is just yet another reason why I am against this sort of technology, and honestly, much of the robotic/AI movement in general. Overall, many of these rapid technological advancements are really not for the betterment of the general population, they're to increase profits for large corporations. Speaking strictly just to the automated vehicles, there will be potentially millions of people in NA that will be out of a job: taxi, limo, shuttle, bus, courier and other transportation drivers. Further down the road, think about the transport industry - all the truck drivers that would be out of a job. At first, sure they'll still be needed for loading/unloading, but let's face it, it's only a matter of time before that's all automated, too. Which ironically, while companies might save money, strain on the government will increase as unemployment rates rise.
I don't disagree that if it was
completely automated, accidents would drop significantly. But, perhaps if they had been more proactive all along, this sort of thing wouldn't be necessary. Likewise, there are other ways to increase safety on the road now, which could again prevent the necessity of this, some of which are discussed
here. I also think that breathalyzer locks should be on ALL engines. But unfortunately, most companies only care about bottom line, not the people they hurt to reach that bottom line, especially when they can sell it to the relatively naive public as a "Look how many people we'll help" thing.