PROPERLY evaluate what they can still achieve with their pistols, after the "adrenalin-dump" of lethal conflict has degraded their fine neuromuscular "feedback loop". garnad claims you will ALWAYS be cold when you get attacked, too.
So you will either be wearing gloves, or have cold numbed hands. You will then do MUCH worse at your shooting than you "think" you can achieve. TRY some high speed draws and repeat hits while wearing gloves. You will SEE that I am correct(as is nearly always the case).