i have this conversation a lot. I live in Germany and the lane discipline is something else! 2 lanes most of the time and the autobahns have rarely any problems.
Right lane = slower lane (still going fast in slow lane)
Left lane = fast lane
Now everyone uses the right lane and unless you want to overtake, then you get in the left lane. However you do NOT keep your ass in the left lane as in a matter of seconds you have a German driver flashing his/hers lights in your review mirror telling you to get out of the way! Now i love this way of driving/riding because there is no traffic hold ups, no one is angry because they just overtook you. It just all works.
The down side is if it goes wrong. getting hit or hitting someone at the speed in which we drive here results in an accident you DONT walk away from. It can be very bad but the Germans know the rules of the roads so most times all is well. Also the clean up crew on autobahns are quick. The fire/police and ambulance are called. They have police stations on the side of major autobahns so they arrive quickly and normally first. Now i know of cases and apparently the Germans agree that here when the police turn up they on the spot can tell who's at fault and normally will tell you there and then and then the clean up begins. All very quick.
I prefer to drive and ride here. Filtering is made easy and they do tend to make room for you and people stop for you if you have broken down. (bike or car).
Being back in the UK and driving/riding worries me and i am more cautious. This 3 lane drivers need to be educated and maybe if the learning process were more strict on when you pass your test maybe there wouldn't be so many "bad" drivers. They put signs up saying "tiredness kills" maybe there should be signs saying "middle lane is for overtaking" or "please use the slow lane" but brits i feel don't like to be in the said "slow" lane because they then think themselves as "slow".
Just educate people or
maybe take a lane away!!!