I didn't fight in WW2 obviously, but I did fight in a war. For me, the reticence to describe every detail to people who weren't there boils down to this: I don't want my wife, my children, or my neighbors to be burdened with thinking of something so horrible. I want them to be happy and safe, that's why I went. No need to bring it to their doorstep if I don't have to.
I suspect many during and after WW2 felt this way.
I suspect many during and after WW2 felt this way.