It would be one thing to prepare teachers and school staff for this kind of rare emergency. But having children hide in a closet and practice being quiet is at best a waste of time and at worst a way to emotionally scar the children we’re trying to shield. Holding these drills four times per year is ludicrous.
Anyone who has ever played “the quiet game” with kids knows they are generally terrible at staying silent. And even if the kids somehow manage to remain quiet for an entire practice drill, there is no guarantee they will do the same in an actual lockdown situation.
Then there’s the question of why we subject the kids to these drills at all. Despite the wall-to-wall hysteria over school shootings, it is extremely unlikely for any student to experience such an event.