Agreed! I would rather be able to retreat instead of ending up with a hell of a nightmare, just because someone had something a bit different in mind. NC does not require a duty to retreat; however, that is what we have drilled into us in the classes I take.
Agreed 'MOVE OR DIE" was taught to me in every advanced SD class I have taken, however in some states you are required to retreat from your auto, garage, home, be it bedroom, basement, what ever.... and being close to 61 with a bad back, I don't run very well, which could get me killed when I stumble, fall, and a much younger, faster adversary pounces putting me at a severe and life threatening disadvantage....
I by far am not the only one in this boat, elderly, obesity, pregnancy, small children with, other physical aliments all reasons to do away with the duty to retreat, after all is it not the bad guy that is the aggressor, and if I need to move say because of a close range knife attack (which is your best bet to survive) , that should be an option and not mandatory.