I have been certified now for thirteen years to carry a concealed firearm.
Used to be concealed weapon, but now concealed firearm.

Now, I take the choices in this order for a fight when you can touch the
opponent:

1. Knife
2. Pepper spray
3. Gun

YMMV. For me, I rate my own competency with each of these in the regard
listed. I'm 60, and have been shooting since the age of 8.

Up close and personal, give me a knife. Mostly invisible, which gives you
the element of surprise, and IMHO, more intimidating than a gun.

Steve