Tech companies in the Bay Area already have minorities of their employees driving to work alone. Only the last of your goals would be relevant at Google.
I get a chuckle out of these threads. Humans are _unbelievably_ bad at driving in the snow. If the only thing a self-driving car does in a whiteout snow storm is come to a halt, it will already be dramatically safer than human drivers. You can just hard-wire the car to not do stupid things. Taking human judgement out of the loop has many wonderful outcomes.