I found this story interesting about a airline fee policy which states that a child and guardian must be in the same "compartment" (aka airline class) or face a $100 fee. The airline which charges this is Hawaiian Airlines.

In the story highlighted in a post I read today, the woman was just a few rows away from her children but still had to pay the fee, despite reaching out to the airline.

Here's the story with her emails about what happened and emails to the business.