You're missing the point entirely, and it has nothing to do with public transit. Although smaller overall, do you not think that Germany has rural areas? They do, lots of them.
Just by virtue of the fact that you live in the middle of nowhere, should not give you the right to pilot a several ton metal box going 100+kph that has the ability to kill you and those around you.
Driving should still be seen as a privilege and something that you have to earn, not just "oh, you live in the countryside.. well, do as you please"