There was no such "familiar definition" of citizenship. There were definitions of natural born "subject". But being subjects of some royal ashhole was just what they did not want. Thus they chose, or accepted, a definition that would not allow the first generation progeny of European royalty to hold the office of Commander in Chief of the American Army. Using the "born in the country" definition (that was not really the pure case in England either) would have allowed some "peer" of the Relm to come over with a pregnant Royal wife, or marry some American wench, and then set up, using the ample purses of the "great families" of Europe, his progeny as President and Commander in Chief, and from their form a new Royal Line, in America.
To such a notion the founders, common men and more educated elites alike, would have said not only No, but Hell No.
To such a notion the founders, common men and more educated elites alike, would have said not only No, but Hell No.
I see, so the founding fathers wanted to make sure that no child of a peer born on US soil could grow up and run for president, even though no one would vote for him anyway.