The main key element is kindness. St Nicholas is always shown as a kind figure, like when he gives gifts to the poor. Another element is magic. His ability to do things like appear out of nowhere or fly on his reindeer - like sleigh adds to the charm for kids. And, of course, the idea of helping others is really important. For example, in stories where he saves people from danger.
In a kid - friendly St Nicholas short story, the element of mystery can be quite appealing. St Nicholas often does things secretly, like leaving presents in the middle of the night. This creates a sense of wonder for kids. Additionally, the use of vivid descriptions is important. For instance, when describing St Nicholas's red robes and white beard. It helps kids to visualize the story better. And the story should have a happy ending, which is something kids always love. This could be the people he helps being very grateful and happy, which reinforces the positive actions of St Nicholas.
Well, one key element is a simple plot. Kids can easily understand stories where St Nicholas does a single good deed, like giving a hungry child food. Also, the characters in these stories are usually very basic and relatable. There is St Nicholas, who is good, and the people he helps, who are in some kind of trouble. The setting can also be important, like a small village in winter. This gives a cozy and familiar feeling to kids. And his selfless nature is always emphasized, teaching kids good values.