In the 80s into the present, they remade the exteriors of schools to be easy to quash protests in.
By now, the retrofits and new builds for shooter-resistant schools are everywhere, since no one fixed the shooting problem. meant to be held by a small force against a motivated opponent with tools meant to get in.
The built the courtyards to be swept. To quash student protests easily.
Without realizing they were working against themselves, now they build the buildings TO BE HELD.