Often, people that don’t know how to write, write children’s books because children don’t know how to read.
For example, here is a short tale about creepy crawlies:
And a recluse gets killed by a reclusive spider brown bagging it on the way to the first day of school. The world was big and bright and all things were new. One couldn’t read signs on the path so it ended up lost in its shoes. The meaning is simple and the riddle, true. No one saw the creeping crippler crawling to chew. By the time it’s found, it’s black and blue and not a spot is left that is new. All things done and settled in, the reclusive returns creepily crawling to chew.
-Jeremy Edward Dion