The American Revolutionaries Didn’t Need a Central Government. Neither Do We.
You’re driving on a two-lane road and see cars headed your way. Do you drive off the road to protect yourself or your family? Probably not. You stay on your side, while they stay on theirs. In most cases you’re in a situation of mutually assured destruction if either one crosses the center line. It is not from the benevolence of the other drivers that we expect them to stay in their lane but from their regard to their own self-interest.