Well, there could be a variety of reasons for the crying in a Christmas story. It might be that a character didn't get what they wanted for Christmas, or perhaps they experienced a loss or a misunderstanding with someone close during the holiday season.
The crying in a Christmas story could be due to a number of factors. Maybe a character received unexpected bad news, or they were reflecting on past Christmases and feeling sad. Sometimes, it's just used to add an emotional depth to the story and make it more touching.