No-one should be made to visit such places.
I respectfully disagree. I think everyone should be made to visit such a place (whether it's a WW2 camp, or a disused Gulag, or a battlefield of red poppies, or a football stadium used by refugees...) at least once in their life.
The world is not a nice place. People do not do nice things to each other. Maybe if we are all more aware of what we have done in the past, maybe if we are aware of what horrors men (and some women) have wrought upon other men (and more women), then maybe we will all be less likely to commit such horrors in the future.
It's far too easy to get entrapped in the cotton-wool of your own blinkers, and lose awareness of the world. Most Germans, even those living in towns
right next to extermination and concentration camps, either accepted or ignored or turned a blind eye to horror a short distance away.The most common cry of the Nazi camp guards was, "We were following orders!". To some, they did nothing wrong. They looked away. They "followed orders". Nuremburg set the precedent that this was not a valid defence.
I really do fear, that were something to happen again (and it just as easily might - it is happening, or has happened, to various degrees, in Rwanda, in the Congo, in Palestine, in Kashmir, in Tibet, in the Balkans
- right in Europe, people! - in Central and South America...) people could happily put their blinkers on and ignore everything because it was upsetting, or distressing, or depressing, or whatever.
...
It's for the same reason I think all politicians (well, all people; but politicians and generals especially) should take a trip into space. Because from up there, there are no borders or state-lines. And this is coming from me, hardly a hippy. Hell, go far enough away and the entire Earth, with all its peoples and its civilisations and achievements can be hidden behind a thumb.