The concern I’d have about catastrophic care is it leaves those with chronic health conditions out - many chronic conditions can add up to thousands of dollars a year, every year. I think there’s a real gap in our system, right now, when it comes to dealing with chronic issues - especially among those who are able to work with proper medical care.
I have actually heard about people deliberately limiting their income, because if they made more they would lose benefits - but the pay increase would not be enough to meet their needs without the benefits. That’s a worry in particular with healthcare, because of the way insurance works.