To be fair, there’s also a set who think their kid needs a phone on them at all times so they can make a call if there’s a school shooting. This doesn’t make any statistical sense as a justification (it might if more “school shootings” were indiscriminate mass shootings, but only a very tiny fraction are—not to downplay them, at all, but there are a couple statistical sieves here filtering for “a personal cell phone a student had saved a life” and the very first one is already filtering it down to almost nothing) but it’s a little easier to sympathize with the basic impulse, at least.