Hi, I am trying to find some recent PB (in the last ~10 years) that has its theme about the dark and cold side of other human beings and how children should deal with them. Such as how children should deal with selfish or cold-hearted people, etc. Not about death and loss thought.
One book somewhat related is This Is Not My Hat by Jon Klassen. Although the lesson is not straightforward.
I also wonder if it is proper to reveal the very dark side of life to children, to have them prepared. Because when they grow up, they'll eventually have to face it somehow. Please share your thoughts. Thank you!