Pointy and edged things come in literally all shapes and sizes.
This kind of thing can plausibly have some value, but I'm not sure it's worth the costs given how easy it is to defeat.
I carried a knife to school every day. Granted, I used it as a pry bar more than as a knife, and opened a lot of boxes with it, but somehow it wasn't a big deal. I brought one into show and tell in kindergarten. My father's generation kept guns at school to go hunting with after school.
Meanwhile, you can be killed without any tools, or with improvised weapons. Banning all weapons does not make an area safe. I'm not even sure it makes it safer - there are plenty of examples in US schools alone of kids being murdered (or nearly murdered) without any weapons at all.
The problem is much, much deeper than mere 'access to weapons', even supposing you could remove weapons entirely - which you can't - and that's even ignoring the fact that weapons are not a specific class of items. What makes something a weapon is how it is used. Cars are the most obvious point to make, here, but you could just as easily use a chair or anything else that gives you more reach, a harder hit, mechanical advantage to cause more damage, etc.
Thinking you can look around a room and detect and remove all the weapons is ridiculous, humans are far too versatile for such a childish attitude to be effective. A room with no weapons in it has no people in it.
I carried a knife to school every day. Granted, I used it as a pry bar more than as a knife, and opened a lot of boxes with it, but somehow it wasn't a big deal. I brought one into show and tell in kindergarten. My father's generation kept guns at school to go hunting with after school.
Meanwhile, you can be killed without any tools, or with improvised weapons. Banning all weapons does not make an area safe. I'm not even sure it makes it safer - there are plenty of examples in US schools alone of kids being murdered (or nearly murdered) without any weapons at all.
The problem is much, much deeper than mere 'access to weapons', even supposing you could remove weapons entirely - which you can't - and that's even ignoring the fact that weapons are not a specific class of items. What makes something a weapon is how it is used. Cars are the most obvious point to make, here, but you could just as easily use a chair or anything else that gives you more reach, a harder hit, mechanical advantage to cause more damage, etc. Thinking you can look around a room and detect and remove all the weapons is ridiculous, humans are far too versatile for such a childish attitude to be effective. A room with no weapons in it has no people in it.