Incorrect. I was in Berlin last year and German students are some of the most educated in the world on the Holocaust and WW2. I was impressed to see student groups/class trips where they've learned all the gory details. It's very different than Japan where they basically gloss over that period of their history and pretend it didn't happen. Whereas we'd take class trips to Fort York, Niagara, Ottawa, whatever, German students take class trips to concentration camps.
Maybe the Germans did the same in the post-year wars (wouldn't surprise me when the memories were so fresh and so many people still alive) but today it's a core part of German students' curriculum.
In fact, all of German society is very conscious of their dark history and that's why when there's the occasional Neo-Nazi attack on gays or Jews the population turns out in tens of thousands to stage mass protests against them. Berlin is chock full of memorials to all the victims of the Third Reich.