Regarding the issue of folks fumbling with/failing to figure out the safeties on their own weapons - well, lots and lots of folks can't keep their heads on straight under stress and fear, and likely those are the same folks who can't shoot straight under stress and fear anyway. No amount of "training" will ever eliminate that from some people, and no weapon, safety-equipped or not, will either. Some folks are just flat-out nervous and cannot handle themselves in those situations. That's not the fault of the safety device - it's just what happens to some people who don't know how to handle themselves in a life-threatening situation.