And in LA, the right lane is for trucks.
But that rule is flexible. It is common for people to pass from the right in LA.
You just have to watch. The right lane is for entering and exiting.
The entrance at my nearest entrance to the freeway is very short. Cars should not be driving in the right lane. That lane is mostly for entering and exiting the freeway near where I live. Also, the speed limit is often 60 on the freeway near me, which is very old.
So I disagree. Drivers have to be more flexible on freeways. It is different on two-lane side streets.
And in any event, here, the left lane can be the exit lane on occasion, but most of the time it is the fast lane. Most traffic is in the middle lane or lanes in LA. In most cases, the left lane is for very fast traffic and the right lane for entering and exiting and passing into the middle or left lanes. Slow traffic is usually exiting or entering, but traffic going the general speed limit is in the middle. I don't think you get ticketed for driving slower than some traffic just because you are in the middle lane. I have never seen that.
On city streets, they should ticket people for slowly riding bikes in front of cars in the middle of the street. It is very dangerous. But driving slower than some other cars in the middle lane when there are three lanes is not a problem because we can move around the middle car either to the left or right. Sometimes the traffic in the left lane is going too fast to pass safely from a slowly moving middle lane.