Do we have the ability to defend ourselves? How do you defend against a drunk driver? Lots of people die to random car crashes because they aren't able to defend themselves.
The promising thing I've always thought about self driving is that while it may make stupid, unpredictable mistakes (drive into flashing firetruck at 60mph) it does this less than a typically human driver would make typical human casualty inflicting mistakes. Moreover we can build & improve to eliminate firetruck ramming; we unfortunately have not been able to eliminate drunk driving.
We've been unwilling to eliminate drunk driving. Breathalyzer ignition lock? Problem solved. Self-driving cars are an extremely poor solution (complexity and cost) to solve this simple problem. People have fought tooth and nail to enable drunk driving - and they've won. Just like they're fighting and winning for mass shootings. Even so, drunk drivers are largely predictable. People know when it's not a good time to be on the streets.
The promising thing I've always thought about self driving is that while it may make stupid, unpredictable mistakes (drive into flashing firetruck at 60mph) it does this less than a typically human driver would make typical human casualty inflicting mistakes. Moreover we can build & improve to eliminate firetruck ramming; we unfortunately have not been able to eliminate drunk driving.