And small children.
For some reason, all of the traffic lights installed in my city now don't have a set of lights at the far side of the junction visible, so there is a fairly large window where you can be stuck with no visibility of the traffic lights in 2 lanes of traffic if you might have a filter light.
There's also rear view mirrors (big vehicle takes up more of my window, so I can't see if there's a bike coming)
Not to speak of opposing(?) traffic on smaller roads. I almost died several times ;)
Very happy to no longer have a car.
Or even how tall the windscreen is can be a significant factor, in my car it is so short that the rearview mirror covers a significant part of the street.
If the person in front of you isn't driving like such an jerk that you need to be looking around them to predict their moves or to find a passing opportunity it's not really a big deal.
The only reason I drive it is because it's so comfortable to sit higher up, and to have a better view of the road that way.
And thereby blocking the view of 'regular' cars.