I am tempted to agree about the steering wheel, but then I think of all of the situations where being able to take manual control would be really nice - like when towing a camper, or backing a boat down a ramp, or handing over to valet parking.

I think this is forcing a false dichotomy between having a steering wheel and driver liability for failures in the autonomous driving system. I think we can have a world with steering wheels and manufacturer responsibility... we just might not get there for a while.