Body armor is rendered useless after repeated shots and won't casually let someone take the shot and keep going, even from pistol rounds.I.....tentatively agree with the basic idea. I don't support stock gun control arguements because they consistently target features that are, at best, of equal value to law abiding citizens and criminals, and more typically are purely cosmetic.
Body armor is substantially more useful to criminals than civilians given that criminals know when they need to bring it and civilians obviously won't. An outright ban is probably unwise given there are non-law enforcement/first responders with a legitimate need for body armor (and enough civil unrest that people outside those groups could do with a set), I would support limiting it's availability, at the very least an age limit seems reasonable.
It's not supposed to stop mass shootings, it's to stop some teenage edgelord from grabbing a vest and making his rampage harder to stop.
Just look at every video of a cop woth a vest being shot.
Most teenagers also would be scared of a firefight and give up before decking it out woth someone