It makes sense to insure against events that can wipe you out financially. Don't insure your car against theft, if you can easily afford to replace it. But

It makes sense to insure against events that can wipe you out financially. Don't insure your car against theft, if you can easily afford to replace it. But unless you have north of about $5,000,000 that you don't really need, and you live in the US, you need health insurance. I've had a single operation for which the "chargemaster" cost was over $800,000 .