If I were in the US, travelling, I'd only want immediate life saving treatment (a heart attack, say) to take effect unless I was absolutely sure of the precise cost of what I was submitting myself for.
It baffles me that you can be billed unknown amounts for this. I don't do _anything_ without knowing roughly how much it costs. My rent? Known before signing. Utilities? Rates are published, there's a meter on the wall. Supermarket? Prices are right there. Taxi? Has a meter, or it's fixed price private hire.
The only example I can come up with right now where prices aren't generally known before the fact is the pub. If you serve me a pint and claim it costs 15 quid rather than the expected ~5, you better believe that you're pouring that down the sink.
I drove by a road toll today in Norway that cost $1. I'm given enough time to turn around and decide not to use that road.
Yet Americans are getting slammed for multiple years' income whilst they're essentially unconscious?
Absolute madness.