Since 1998, which included Columbine, there have been 39 school age (K-12) students killed in a mass shooting in a K-12 school by a shooter with an "assault weapon". 39. In three incidents. 5 at Columbine, 20 at Sandy Hook and 14 in Florida.

Since 1998 there have been 22,176 15-18 year olds killed as an occupant in a motor vehicle accident. If these kids were truly concerned about their safety they would be marching to raise the driving age to 19.