I'm constantly hearing the "can't drink alcohol til 21, so shouldn't be able to buy a gun til 21" argument, to which a rational person usually counters with "but we can send them off to war to kill and die by these weapons at 18?" Will this wind up being some further way to weaken our military? Will they get the "21" stuff thru ACROSS THE BOARD and someehow, with a penstroke, wipe out 2/3 of our enlisted men overnight?