As semi-autonomous and autonomous cars become the norm, I would adore to see obtaining a drivers license ratchet up in difficulty in order to remove dangerous human drivers from the road.
The USA driving test is so much easier than the UK one!
UK: Varied junctions and roundabouts, traffic lights, independent driving (≈20 minutes via sat nav or signs), one reversing manoeuvre (parallel park, bay park, or pull up on the right and reverse), normal stops and move-offs (including from behind a parked car), hill start, emergency stop.
California: Cross three intersections, three right turns, three left turns, lane change, backing up, park in a bay, obey stop signs and traffic lights.
My understanding is that the USA test is so much easier because it's hard to get by in most of the USA without a car, so if the test was harder people would likely just drive without a license instead.
But I've heard of areas that's it's easier, too, like your CA experience.