Some of this is almost on us. Amazon has just completed a huge (by anybody's standards but Amazon's) distribution centre just off the A1/M1 link road at J45, which has only been in use a few years (it was built in anticipation of the road serving it being developed from a track to a dual carriageway) is being extensively "improved" presumably with a chunk of dosh from Amazon paid in connection with the planning permission.
Bearing in mind that Amazon seem to be at the front of a lot of transport developments, I cannot see it being long before huge trucks to match the scale of that building are trundling around the motorway network with minimal human involvement.
I was reading recently about a new flexible bus system being built somewhere like London Docklands, the idea being that it only visited stops and routes where someone had either called the bus from a stop, or requested having got on. That's another system ideal for driverless operation, especially as on that type of development the land is either privately owned or controlled by a development corporation with the power to set their own rules.
However, once you optimise travel in a way like that, you risk throwing into question the whole private ownership of cars concept. Why own/ lease a very expensive bit of machinery that spends the majority of its time stationary and taking up a lot of space if you can summon a robotic one for the duration of the journey? Of course, in urban areas we are there already with taxis/ private hire but that doesn't seem to stop anybody who can afford it having a car or several as well.
It may be that the old gits have got it all wrong, but it will be the marketing people who run this, not the Tefal men. I mentioned the thing about some people liking to feel they have control of their car. On a typical automatic car of the executive type - where the manufacturers make their profits - in addition to a sophisticated automatic transmission, the driver will be able to select a sport mode which stays longer in lower gears to maximise acceleration, select a lower gear by pressing the accelerator right down for a similar purpose and then change up/down with paddles on the steering column. Why keep a dog and bark yourself? In this case, to feel in control. It may be illogical but it sells expensive cars, and IMO, this will influence the trends in cars. The pioneers with the money for the latest gadget will be in the marketing people's sights.
I'd agree that nobody will deliberately increase the risk of crashes but "safety" will increasingly be achieved by things like cycle routes behind bus stops.
https://www.youtube.com/watch?v=bsNwtBv3PI0