As much as we can rightly poke fun at Americans over here in Europe about this I've found Europeans really underestimate how much we're adopting American-style suburbs because they just haven't been to those areas.
Sure you can walk that if you have time & inclination, but unless you're willing to spend an hour just on crossing the street you're going to drive there.
This wasn't even hard to find, I just zoomed in pretty much the first freeway in the Oslo area I could find and saw what it would take to cross it for someone living on the other side.
That's a pretty peculiar example - the big box furniture store in your example is actually outside Oslo and you have farmland as the closest neighbor north and south of both locations.
Nobody is talking about banning cars from areas like that, just from the city center.
Case in point, here's a 30 minute walk (5 minutes by car) for someone to literally cross the road in Oslo: https://goo.gl/maps/PFTnTrprKjiDrE7y8
Sure you can walk that if you have time & inclination, but unless you're willing to spend an hour just on crossing the street you're going to drive there.
This wasn't even hard to find, I just zoomed in pretty much the first freeway in the Oslo area I could find and saw what it would take to cross it for someone living on the other side.