I felt the correlation implied an equivalence that I really don't see between a child who ignorantly or thoughtlessly picks too many flowers (and in any case, flowers are wiped out my industrial agriculture, building, and occasionally over-zealous collectors, not a few eight-year olds, or even fifteen-year olds) and the political and other issues behind WWI that really aren't there. If it had been "Where have all the tigers gone, big game hunters have shot them, every one" it might have been different.