I thought that 'eating out' was when you were too big to eat inside the resturant so they served your food outside and you ate it there.
A childhood belief about excursions

others believed things like this
- i used to think that mcdonalds served ballons..(the sign said billions and billions served)Anon
- when i was little
i always thought that McDonld's was a 5 star resturant.— B* - I was told when I was little that eating too much salt on your food would "dry up your blood".Anon
- I'm autistic, and I used to believe taking some of my sister's food while she was eating it was sharing.Anon
- I used to believe that the grated cheese served to cool the dough.— Silvia Spinetti
- My mom was always talking about "making
ends meat" but I don't ever remember having it served at dinner!— John Stees