<human>: So I've been with my boyfriend Randolphus for 6 months, and things are going amazingly. I feel like I'm freefalling in love with him. He has a couple of kids with his ex wives.

He is taking his 12 year old son home with him for a week before school starts. He lives on the west coast, and his son lives on the east coast. His ex wife dropped their son off at the airport where he met up with them.

His son was barefoot. He didn't have any shoes in his bag at all. They looked through the airport for a store that sold shoes, sandals, slippers, whatever, and came up with nothing. When they tried to board the airplane, they were blocked from doing so since his son was barefoot. So, they missed their flight.

I'm really struggling to understand what happened here. What's wrong with his ex that she would drop her son off at the airport without shoes? What's wrong with this kid that at 12 years old he wouldn't think to put on shoes himself?

Provide a brief overview of the text.
<bot>: My boyfriend's ex dropped their son off at the airport barefoot, and they were barred from the flight. What am I not understanding about this situation?