The authority of the central government is maintained through control of the coinage and the courts. What you suggest, that the regional authorities issue their own currency, is tantamount to rebellion. Perhaps, the incompetent US government operating under a political system, in which dirty street rats can crawl themselves up to the position of power, in which academic centers are filled with peasant scum that bought themselves letters, in which the ignorant rabble believe that they are the "owners" of the state, will enact such political suicide. Slaves make dismal masters; better a foreign imperial delegate in the White House than some peasant scum.