Hugs for everyone!!
And Sean, I think part of the problem might be that these younger kids didn't live through it and don't remember how terrifying it was. Some of them were maybe alive but 1 or 2 years old. You don't usually start remembering till at least 3 and even then, real memories you remember decades later, maybe not till 4 or 5, so most of these kids are too young and don't remember. So they don't get how terrible it actually was. All they see are some pictures or info in a history textbook or online. It's just another dumb/boring history event to them rather than a terrifying event they lived through and connect with. Still not right but I think that's a big part of it.
I was only in second grade but I'm still old enough to remember that and have what little memory I have of it etched in my mind. And to remember the terror and emotions of the adults, the crying and how upset they were.
Kids born after 2000 or even late 90s don't remember that.