That adults had it figured out.

That average people actually care about anything but themselves.

That there is justice in the world.

That hiding candy (or other things people wanted) was a universal property of grandmothers.

English is not my first language, but I had heard the expression “search all nooks and crannies”, but thought the last word was grannies - cranny is an unusual word.

Now,my own grandmother was in the habit of hiding candy for us to find. I thought the expression existed because all grannies hid things. Search all nooks and grannies!

Most humans have good ethics and beliefs. The more I grow, the more I’m disappointed in our society.

That cats and dogs were the same animal, the cats were the girls and the dogs were the boys

I believed I was an adopted alien from outer space before I realised my face is like my father’s but prettier.

There’s a highway that formed a loop around the city where I grew up and we used it pretty regularly, but mostly only the western half (since we lived on the west side of town). My parents explained the concept to me that it had “belt” in its name because it circled around the city like a belt goes around a person. This idea intrigued me and I eventually asked my parents if someday we could drive all the way around it. My dad seemed kind of surprised but said we could sometime. I got excited and started planning for things we would need, like a tent and food, since it would obviously take a long time.

The highway’s only about 25 miles/40 kilometers long.

My grandmother told me England was not part of the European continent. I got an answer wrong on a test because of that. She refused admit she was wrong even after I showed her in my text book.

That tv programming would pause when I turned the TV off.

Premises:

1. My family watches the news for [weather] and [ye local murder].
2. My friend says: his dad says: “the news lies.”
3. Parents are trustworthy, and cops can’t lie to the news.

Conclusion:

They lie about the WEATHER!?

that my grandparents remembered middle ages or even the dinosaurs

I ran up to my mom once, completely serious and said, “Mom! I know why all fat people are short. They use up all their skin!”

I felt like a genius until she laughed so hard she fell on the floor and peed a little.

Can I’ll cheat a little and use my teen years.
When let’s plays where the new hot thing, I thought a blind let’s play literally meant, eyes closed

That every time people had sex, the woman became pregnant. I thought that every sex scene in a film meant the film had to be stopped for 9 months until the actress could give birth.

When I was little, I thought that “cash back” meant that the clerk literally just handed you money out of the register if you wanted it.

I assumed that most people were honest and only took the cash if they needed it. I didn’t know that it came out of your checking account lol.