It's not difference than lock on your door, a drug addict see your front door unlock, they'll try to steal something, but they aren't gonna figure out how to pick a lock or break a window to cause a ruckus.
For schools in particular, it does not seem like a good use of funds to buy super expensive metal detectors when the intent is only to deter "common scenarios" instead of dedicated attackers. Or do you disagree?
saying as someone who went to a semi-private school run by nuns where pupils would get written up for running.
I go through a metal detector when I go into work.
I go through a metal detector when I enter a courthouse.
I go through a metal detector when I go into the Capitol.
None of these things detracts from the gravitas of those places, and none of them makes any of those places feel less safe.
Especially when the alternatives include impinging on fundamental rights or forcing kids to go through sometimes horrifying active shooter drills, I have a hard time understanding the objection to metal detectors.
then again i only ever went throu a metal detector at the airport; which neither detected my pocket knife nor the screwdriver in my bag, but the guards made a real fuss about that half-filled bottle of juice.
> Drake told reporters that "there was another location that was mentioned, but because of threat assessment by the suspect, too much security, they decided not to."
https://www.newsweek.com/covenant-school-shooter-audrey-hale...
Metal detectors are better at preventing situations like gang violence where rivals carry every day "just in case".
Experiences certainly vary: security checkpoints definitely make me feel less safe, whether or not they include metal detectors, so I avoid going into any place which has one.
I would go to some significant effort to avoid putting my child through that experience every schoolday. What a drag on one's educational experience that would be!
Ceramic knifes exists.