My favorite story book was Cinderella and her two horrible step sisters and her step mother. I always wondered how anyone can be so mean.
It was a fairy tale I knew but in real life these things happen too, when the father remarries and ignores the first wife’s kid.
There were things in the story that taught me to be fair to everyone,never to treat someone poorly, to be kind and unselfish.
The right stories do teach children early in life why it’s a bad idea to be mean.
https://sabethville.wordpress.com/2014/03/21/writing-prompt-bedtime-stories/