> for anyone who has ever read from a collection of his stories, a majority of them are most certainly not appropriate for kids.
That really depends on the culture you are coming from.
There is a deep divide between how European and USA culture views what is appropriate material for children.
Being from the nordics, H.C.A's whole collection was part of mine and every friends childhood, from as early as kindergarten, and I vividly remember feeling deep sadness and empathy towards some of his characters at an early age.