They seem to think an insurance card means their medical bills are going to get paid .... wait ‘til they find out there is such a thing as a “deductible”.
Someone here, after the BO-care legislation was "passed," shared a news story or two about people who thought now that the vote was in, they were sitting pretty. There was a tale of one man who came into a clinic, sat down, stretched out, and said something along the lines of "Give me this and that medical treatment -- it's free now, I don't have to pay for it!"
They probably assumed it was simile to previous plans, if they had one, not the 6-24k deductibles under ObamaCare.