I cba arguing with you all but;
You allow someone to have easy access with a deadly weapon. Where all it takes is a split second to pull the trigger to end someones life. A knife, you have to physically WALK up to the victim. You have to pull through with it all the way to the end, where as with a gun it's just a split second pull of a trigger no thinking about it. Guns allow easy killing without any thinking needed if you already have a gun under your pillow or wherever.