30+ years of increasing school shootings have proven time and again that gun free zones don’t work. Criminals are going to criminal regardless of a sign or gun control laws as they’ll find illegal ways to procure weapons.
Gun free zones just create soft target areas for our children, by deterring lawful citizens from exercising their innate rights. We need to instead focus our energies on hardening our schools and addressing the growing mental illness issues driving school shootings.
This would include encouraging those teachers and staff who are properly vetted and trained to carry.