There's something unsaid in all those interviews, of course. Those kids were comparing what they saw with what they know. Movies and television set the benchmark. On screen, gunfire doesn't sound like little more than popping sounds. It's pumped up by sound designers.
Violence is slick and choreographed.
And, time and again, violence is funny. At the oddest of times, in the middle of unspeakable terror, characters on screen find it within themselves to spout silly asides. They remain cool. We expect our action heroes not only to be good shots but stand-up comics as well. Yet few examples of Hollywood violence are so slapstick.