You've never been in a fight? I'm sure there have been opportunities. What makes you think you'd have the balls to shoot somebody when you've you've never had the stones to punch somebody in the face?
Shooting at someone because one is in fear for their life is a
completely different ballgame compared to (willingly) engaging
in mutual hand to hand combat. There have been numerous
cases where individuals with no prior "fighting" experience have
used a firearm to dramatic effect. (In no way am I saying
thats an optimal occurence- but it does happen... there's no
beating around that bush. )
I agree that, yeah, there are people who probably could not use
a gun to save their own life if the conditions were bad, but these
are people that probably couldn't use any weapon, because they're
still stuck in condition white halfway through the attack- they
spend most of their time in denial because they never even
fathomed the possibility of them having to defend themselves.
Even those who have visualized the possibilities and thought of
what they would do in bad circumstances are 1000 times better
off than the person that goes "that will never happen to me, that
only happens to other people." Training (and real world
experience fighting, whether with fists, guns, or otherwise) is
equally dramatic of a multiplier in terms of survival, if not sometimes
moreso.
-Mike