I'm going to play the devil's advocate here due to my severe distrust towards American insurance companies. I haven't had health insurance in 7 years.
I usually pay $120 for a visit to urgent care once a year for common cold infections.
Do I worry about it? No, not really ever. Yes I could get in a terrible accident, but I am still young healthy as far as I know so I'm not worried about disease. Major accidents are the only one I could possibly worry about, but I have had several friends who have the same general distrust (and lack of insurance thereof) and HAVE gotten in accidents. They still get treated, and they end up paying nothing in the end. It's remarkable if you ask me.
I know I may get flamed for saying this, but I think the way insurance companies get off is instilling fear in people- making them think they need to pay thousands of dollars for "security". When, in fact, everyone has the same amount of security when in dire need of emergency healthcare.
Jessica, you probably have a very different viewpoint on this being that you used to deal with emergencies and accidents all the time? Hopefully what I just said isn't too upsetting