So to me, at least, D&D is more of an MMA fight than a real fight. Everyone is ducking, dodging, feinting, weaving, attacking, defending... it's very dynamic and interesting, but not very realistic. I would favour an agile person with a small blade who could get into the pocket without significant injury over a greatsword wielder who relied on distance and reach, every day in a real fight.
But then I guess it comes down to what you want out of your game. Fun or reality?
As others have pointed out, I'm not sure that your statements
are an accurate reflection of reality. Will a skilled, agile combatant with a knife defeat a strong but clumsy and untrained guy with a large sword? Probably. But that isn't due to knife vs sword, that is due to skilled vs unskilled.
If you have a skilled and agile person with a small blade vs a skilled and strong person with a large blade... I don't think the odds are necessarily in the favor of the knife-wielder. Dismissing the difficulty in getting in close without injury is, well... unrealistic.
Look, earlier in the thread, you offered up a pretty condescending dismissal of "geeks who worship japanese culture". Even so, I can understanding feeling that the fetishization of samurai and katanas is overblown.
But doing so while
simultaneously fetishizing knife-fighting and agility as the end-all and be-all of combat? And trying to repeatedly claim that only your viewpoint represents reality? That sort of hypocrisy is just going to distract from any decent points that can actually arise in this discussion.
Look, earlier in the thread, Wik pointed out quite a few inaccurate statements and inconsistencies in your initial claims. Your response was to appeal to your own medical knowledge and experience, but you didn't actually address
any of his points.
If your goal is to ask, "How can we make the utility of daggers in combat more accurately represented in D&D or other RPGs?", then I recommend actually addressing some of the concerns and comments folks have made about your claims.
If your goal instead is simply to ask, "How can we make daggers the most super-awesome weapon in the game, just as they are in real life?"... well then, continue to ask away, but I don't think you'll be finding any useful suggestions from anyone else in this thread.