The key point here is that all our current machine interfaces are designed for humans to operate. Thus if you create a robot in human form, you don't need to change any of the interfaces.

Imagine a human form robot that was smart enough to drive a car - it could then drive any car.

The problem is that locomotion of a human form is non-trivial (unlike say a wheeled robot, or even welding the robot into the car itself, like our current self driving attempts). But we seem to be getting there, with Boston Dynamics and friends.