Well,
the UK doesn't cover everything that people think they are entitled to either. Your last point might be generally true, but it also may be that people in the UK have a different expectation regarding care. Because there is a national standard, they -- and the doctors -- know what treatments they can use, and which treatments are inappropriate because they are too expensive with too little benefit.
For example, one 'grain of salt' you should probably look at insurance company anecdotes with is a fairly common scenario:
- The doctor recommended an expensive treatment and the insurance company wanted to try a less expensive one first; Hence, they
denied payment (from the POV of the patient). This goes back to the issue I mentioned earlier: we complain about cost, we do a terrible job of containing cost, we use expensive procedures more often than any country in the world, but
hate hate hate the idea of any "bean counter" overruling our doctor on anything to contain cost. Everyone wants to contain cost, as long as the cost containment isn't used on them.
I don't claim there is a black and white resolution there: bureaucracies can't know the nuances of a specific patient like a doctor can;
I don't want an insurance company overruling my doctor. Yet, clearly in the U.S., our doctors use very expensive treatments with little to show for the extra cost, so
somebody has to try to stop it. And chances are, whoever does it is going to be the bad guy.
To be clear, there have been some odious actions by insurance companies in the past (finding excuses to drop people when they get sick, etc.) that are not worthy of defense, but there is still a major problem with expectations in the U.S.: purely anecdotal, but a lot of people tend to think that health insurance means (or should mean) carte blanche on medical procedures: if I get sick, my insurance company had better pay for whatever procedure my doctor demands. If he demands the most cutting edge, expensive procedure out there, then darn it, it should be paid for! And the reality is, neither a public nor a private system will be that.