..."
Such stories invariably elicit outrage, and from time to time a district here or there will rethink zero-tolerance policies, or claim to. "Rethinking Zero Tolerance: A Few Schools Are Inching Away from One-Strike Policies," reported Newsweek back in 2001. A decade later, The Washington Post reported "More Schools Rethinking Zero-Tolerance Discipline Stand."
They must not be the fastest thinkers. In January 2013, a 5-year-old girl was kicked out of kindergarten for "threatening" to “shoot” classmates with a Hello Kitty soap-bubble gun. But don’t worry—this January, The New York Times confidently informed readers that "schools across the country are rethinking 'zero tolerance' discipline policies."
If your brain has more electrical activity than a bowl of lukewarm Jell-O, then you know why zero-tolerance policies are stupid. First, they ignore blatantly obvious distinctions. Gnawing a Pop-Tart into the rough silhouette of a gun does not turn it into a firearm. Breath mints are not a Schedule I narcotic. Fingers don’t fire projectiles.
Second, zero-tolerance policies don’t prevent the incidents they are designed to prevent. Deeply disturbed individuals who commit school massacres—the Dylan Klebolds and Adam Lanzas of the world—are not deterred by rules, and they do not commit mayhem with soap bubbles. So a rule that bans soap-bubble guns in school has zero effect on school violence"...
FredHayek wrote: Just lazy administrations. They don't have to justify punishments that way, and don't have to explain why some people get suspended and other don't.
I think it is fear. It is easier to get in trouble using your brain and making a decision than pointing to a rule and say I was just following orders.