I am required to buy auto insurance, and rightly so, if I drive my vehicle on the publicly maintained roads. If I keep it on my own property, I don't.
This is *not* the same thing as health insurance. We don't assume that the government can require you to buy health insurance just for rolling out of bed and taking a deep breath of government air. At least, we haven't up to now.
Clear now? Good. You're welcome.