The country can have a vibrant market for individual health insurance. Insurance proper is what pays for unplanned large expenses, not for regular, predictable expenses. Insurance policies should be “guaranteed renewable”: The policy should include a right to purchase insurance in the future, no matter if you get sick. And insurance should follow you from job to job, and if you move across state lines.
Why don’t we have such markets? Because the government has regulated them out of existence.
Entire editorial in The Wall Street Journal worth reading.