I have to tell that I fully understand your position in this particular discussion, however, I do not share the belief of the goverment turning down XMR/GRIN. Sure, they might be capable of pushing them outside the world of "common transactions," but they exist and the black market is unstoppable just like human desires. They would participate in a war they have no chance winning of (and even funded by taxpayers money... tragic in its own way). I really hope they will realize that technology has finally reached a point when no authority is big enough to stop decentralized systems of p2p transactions. Oh Lord, I know this will be bloody... Nonethless, as long as there are people looking for freedom as their primary desire, privacy will be seeked at all fronts (including transactions).