You're right. Bad stuff happens even to those who are prepared. But far too many people are too shortsighted to prepare at all. A buddy of mine recently had to take out a payday loan to cope with a $150 doctor bill for his daughter. That loan cascaded into nearly $500 per month payments on a half-dozen payday loans.
So he got that all straightened out and what did he do? Did he build up a $1-2000 emergency fund? Nope. He bought a shiny new(ish) dealer-financed SUV.
He and many (most?) others have no plan whatsoever for dealing with financial emergencies.
And eventually we the taxpayers are going to be on the hook for these kind of people.
Just in case anybody wants to know, most doctors will cut the fee and accept $10 a month.