Randy, be sure that there's no purpose to outcast the inner quality of your recent posts.
Rather, our exchange in french was mentioning that, indeed, in this part of the world we'll probably face at first sight an asymetrical conflict : a person being attacked by an armed thug.
So, the first duty line of our main training will be based on facing the knife unarmed, on regaining time and space, on having the ability to stop or deflect the threath. For a few of us ( on concealed carry weapon, being a blade, a firearm or an impact tool ), it will also consist of deploying the weapon under stress. All this would still be an asymetrical conflict management.
Once the weapon deployed while being under attack, then only would it become a symetrical fight.
Of course, it could be that a trained man carrying could prefer to deploy preemptively while suspecting being targeting and soon being under attack. Strategically and tactically, it would be rather wise. Unfortunately, in western europe, you will be dead meat on a legal matter. Luckily, you'll survive the fight thanks to your training, your skills and your weapon, but you probably won't survive the legal aftermath fairly well.
So, it is a personal choice to be made and to be assumed. Here, on this forum, we don't judge these choices and prefer to explain and explore all the possibilities.
Many thanks again for your inputs and do know that we appreciate them at all times.