How fast do you think it takes a guy to run/sprint 20 feet and strike two people?
Remember - these cops are standing and guns still holstered.
Most never even can get the gun unholstered by the time it’s over.
OK that is a reasonable scenario
“Remember - these cops are standing and guns still holstered.”
What about knife man? Does he have a folding knife in his pocket at the start of the drill? Is he pumping gas at the beginning of the drill?
And the FBI says that is someone shoots a BG in the heart, the BG will still have at least 10 seconds of useful consciousness in which to shoot back. Much more if you just nick an artery.
You cut someone’s femoral artery, they will die. But if they live long enough to put 10 rounds of 9mm in you, your odds of collecting social security go down too.
Caught by surprise, most CCW folks will need 3-5 seconds to get a gun out. Maybe more. After all, it is concealed and you will probably have carried for 10+ years without ever needing to draw in self-defense. You just won’t be very good at it. The same applies, but even more so, for using a knife in self-defense.
What kind of idiot lets a perp close to 20 feet before presenting his firearm. Nobody in real life.
The 21 foot rule is real, and yes the assailant will close the distance before a victim can unholster and present his weapon. In reality, if I see a man coming at me with a knife, i have my gun on target on trigger long brfore he gets 7 steps from me, and I am trying to create distance all the time.
Try the same drill with the victim on target on trigger, and Mr Knife gets shot every time.
The only use for the drill with holstered weapons is to emphasize not to let someone close to 7 steps with your firearm holstered. That is called “situational awareness” and it means you have the gun out at low ready as soon as you see a man with a knife approaching ou. If he keeps it up, then you go on target and shout for him to STOP.