In my elementary school days during the 1960’s, we had regular disaster drills. The alarm would sound and we were instructed to go out into the hallway and crouch on our knees with our heads under the concrete coat racks that were built solidly into the wall. I had no idea what the purpose of these drills was - as far as I was concerned, it could have been nothing more than a physical exercise. I was only six or seven, and if my teacher tried to explain that the exercise was a feeble attempt to protect us against the fallout of a nuclear attack by the Russians -well, none of that made any impact on me.
Which is just as well, because if I had understood that some other country might drop a bomb big enough to destroy everything and everyone I knew and loved, I would have been scared shitless and scarred for life.