I had some swelling in my legs and chest pains recently and had to make a trip to the ER. It was very difficult to weigh the threat of the symptoms against the potential cost of an ambulance ride and emergency care, and it occurred to me at the time how ridiculous it would be if I were sitting around performing cost benefit calculations before calling the police or the fire department. I've really been thinking hard about whether I want to continue living in the US as I age.