Hi David,
My feet are pretty numb and I drive. I do not think I’m dangerous to others. I think there are many things going on when we drive besides what is being felt by the bottoms of our feet. I have to really pay close attention and be vigilant even when I’m stopped at a light because I could unknowingly ease off pressure on the brakes and roll into someone. I watch carefully when I’m driving and part of it is not only using my eyes but also my body remembers how much pressure to apply to brakes or gas. I seem to be able to stop and go pretty well. I should have added that years ago I learned to drive with 2 feet, one for each pedal. Not great if one is driving automatic but its helpful now