I see the confusion. American health insurance doesn’t really fit the term insurance as you define it above. I agree, insurance should be for catastrophic event

I see the confusion. American health insurance doesn’t really fit the term insurance as you define it above. I agree, insurance should be for catastrophic events. But in the US, a health plan is expected to cover all your medical expenses, minus co-pays or deductibles. Perhaps there should be a different term for it.