You can go without wearing seat belts, if you also will agree to paying all of your medical bills out of your own pocket without causing everybody else's insurance rates to go up, should you get injured. And oh by the way, no death benefits for your survivors should you get killed, why should the rest of us pay for your stupidity?
That's fine, as long as you do not deny us the right to contract among ourselves, or with a private insurance comapany, to insure ourselves against risks among ourselves, presumably with discounts for those who agree not to be covered for harm that occurs when driving without a seatbelt, OK?
(And your post incorrectly implies that anyone is advicating not wearing seatbelts. Read the article AGAIN, if you are still confused. Liberty is not about not doing the right things, it is about not being FORCED to do the right thing.)