your analogy collapses by equating the demand for yardwork with the demand for services that ensure our collective survival: clean water, emergency services, safe travel, reasonable freedom from foreign invasion and anarchy, and mostly-safe economic system. You can't "opt-out" of those services, and even if you could, it's predicable you'd immediately opt-in for them the moment your life was in danger (say, in the case of a medical emergency, your survival instinct will inexorably override your passion to be free from the big-bad "gub'ment" ).