According to the Washington Post (citing Department of Education data), "...the statistical likelihood of any given public school student being killed by a gun, in school, on any given day since 1999 was roughly 1 in 614,000,000. And since the 1990s, shootings at schools have been getting less common." To put that into perspective, students are more likely to get struck by lighting, die after being hit by a falling meteorite, be killed by a shark, or in more common instances, other statistics show they are much more likely to die falling off their bike on their way to school, getting in a car crash, or dying from an injury while playing school sports.
If "every kid in this country" (as claimed by March for Our Lives) goes to school wondering if they will get shot - why? This fear appears to be irrational and grounded in no actual evidence. Who is telling them that they should feel unsafe?