As someone who is blind I'd buy a car if it could drive me where I need to go 75% of the time. This assumes that it weather forcasts would be accurate enough to let me know the car could get me to the grocery store and dry cleaner any time during the current day rather than leaving me stranded at my destination unable to get back home.

A self-driving car hardly has to be only self-driving.

I have two use cases in mind:

(1) Delivery-bot. A car that drives itself to drop off a package and only delivers on non-rainy days. (if you need delivery on a rainy day, you pay extra for a person-driven delivery service. Otherwise the package waits at the warehouse)

(2) Transport option for people who can't or shouldn't drive themselves - too old, too blind, too young, or physically impaired. The self-driving car takes them where they need to go when weather permits, otherwise they have to call a cab or van service as a backup option.

(Much of California only has a couple weeks of rain per year.)