Originally Posted by AlmostTrick
That's because they've become accustomed to waiting behind other motor vehicles so they accept it. When it's a bike they go nuts because they think we should get out and stay out of their way. All the sidewalk riders help to fuel this notion.
I don't know how it is in Australia, but in the U.S., it's also fueled by the continuing perception of bikes as recreational vehicles only, thus less important than people in cars who are "really going somewhere".