Drivers licenses protect folks from each other, not only do we need them we need to be more selective about who gets them
Seat belts protect you, so it should be your choice. If we had socialized healthcare, not wearing a seatbelt is a greater social cost, and then I would be ok with enforcing it. However, since we don’t have real healthcare in America and it’s all out of pocket, I don’t think we should enforce seat belt laws here. It’s hypocritical.