That would be a reasonable decision, we have leftists promoting emotional, knee jerk decisions, the "safety officer" on site didn't enter the building when the shooting was going on, people have the misconception an armed officer will always protect them, far from it, the law enforcement failed, the FBI failed, the school safety measures failed, all failed, and now the leftists who won't use reason want yet another nanny state rule that would not be honored by a law breaking person.
Many, many warnings were given and they went unheeded, that is where a person who possesses and uses reason would start.
Switzerland has the highest firearm ownership rate with virtually no violence, it definitely is not the inanimate object that jumped up, loaded itself and went to this gun-free zone and did this.
blessings