maybe those people are planning to go into competition shooting. i have my pistol for self defense also, and i practice at 3, 7, 15, and 25 yards. it just keeps me toned up.i can shoot tight groups at 25yrds. w/my sig 239 in 9mm,
i believe any practice is good.
if you shoot someone trying to rob a store and threatening to shoot you, and you were right next to them they might have some loco friend 25 yards away that might start shooting at you.
This probably would not happen and the close range practice is the best,but it never hurts to practice at all the targets.
you never know.
the targets are there you might as well use them.
just being me.