The only time I've been to the ER, there weren't lots of people, though we do have a similar problem to the US with people going there for minor stuff. Especially with their kids, they get worried about a fever and immediately go to the ER. However, I felt really bad when waiting in that ER, since I actually didn't want to be there. My friends saw me have a panic attack and although I had taken medication to calm down, they insisted on me going to the ER, where the discussion with the doc was like "we can't do anything for you" and me going "yes, I know, please tell that to the people outside, I'm feeling absolutely fine". I felt pretty bad for "blocking" the ER, even though it was mostly empty.