How is being listed there pretending it’s not a thing?

The bad execution of the flow chart was bothering me enough to create a cleaner version.

Small correction:

“Ich bin bei den Großeltern” → “I’m at my grandparents (or grandparents’)”

“I’m at my grandparents’ place” only exist as “I’m at my grandparents‘ house” → “Ich bin im Haus meiner Großeltern”