Wait, what? No stoplights and ice on the road - that's like 1/3 of the year here in Finland. All you have to do is adjust to the environment and you are able to get from a place to another.
Damn this European smugness gets on my nerves so much for some reason.
If you have these driving conditions 1/3 of the year 1) Finnish drivers grow up learning how to handle it because they have to, 2) most if not all of your cars have 4 wheel drive and ice-capable tires.
That is not the case here. Those driving conditions are rare.
In a city, with 10-20% grade practically everywhere? Yeah it's passable in flatlands or sparsely populated areas, but frankly automatic cars aren't really going to be any worse than humans at traversing bad conditions, so an impassable road for an automatic car would be impassable also for a human driver.