By your reasoning then, there should be no laws mandating that cars only drive on the right side of the roadway as no one is being 'harmed' unless and until two cars crash into each other. But that's not the way it works, is it? Nope.
By your reasoning, there's no reason that boats should be prohibited inside the orange buoy's at Lake Lanier's dam because no one's being 'hurt' by their presence there.
By your reasoning, there's no reason why pedestrians shouldn't occupy the entire land of a roadway instead of being forced to walk on sidewalks on on the verge.
By your reasoning, there's no reason to obtain a driving license, nor a private pilot's license because 'no one's being hurt' by your driving or piloting unless you decide to just smash into oncoming traffic or aircraft.
I'm not sure how to break this to you, but there are plenty of laws passed by the people (as represented by their government) with the sole purpose of keeping people from harming themselves. The lack of court decisions rescinding said laws says plenty about their Constitutionality and the role of government.
Tell me this though, if "the government should not be in the business of protecting people from themselves" does the same also apply to manufacturers?
Should there be a warning not to use pistol powders when loading shotgun shells?
Should there warnings that high voltage wires are behind certain doors?
Should there be warnings that some lakes and inland waters in Florida harbor alligators?
.... or should it be left up to the consumer as it's 'not someone's place'?