Because we are bred from a pack of world roaming wolves that left their homeland to get out from under the thumb of religious repression and hopeless conditions in serfdom. I follow most of the rules, but but some big bends in the gov. looking over my construction shoulder.
A sparrow or rat can build a nice house, without a permit or oversight, and so should we - like in Mendocino county, California. They pay a fee and the house gets registered as a buyer beware.