Regardless of this, the goal shouldn't be to punish everyone. Many people go to emergency because they can't differentiate between what is an emergency and what isn't.
Last time I went to the hospital was because I woke up in the middle of the night feeling like someone had dropped a 300 pound weight on my chest. It was hard to breath, the pain was immense and I knew something wasn't right. I went to the hospital and was treated terribly.
I spent hours in the waiting rooms watching doctors and nurses just casually chatting away like they were intentionally punishing people for being in the wrong place. As time went on, I realized I wasn't dying but it was still extremely uncomfortable and didn't feel like something where I should wait and see if it was an emergency or not.
Send people home and/or tell them to go see a general practitioner. I just don't understand the objective by being so non-nonchalant and just making them wait. It just seems like a passive-aggressive solution that crowds the waiting rooms even more.