Not enough to be ethical when it comes to tours of vehicles, for example. When this debate comes to industrial vehicles and large (used in agriculture, demolition and construction) makes us think:
We will be replaceable?
How does this impact on job creation and unemployment?
Something unquestionable and visible to all, are already being manned aircraft distance, robots help in the disarmament of explosives.
The autonomy of vehicles simply walk by commands (software fails).