Many years ago, the website "www.www.com" was an informational site about the history of the Internet (it's since been removed). One day, I accidentally typed in "www.com" and hit ENTER. My mom was looking over my shoulder, and when the info page came up, she told me, "Obviously, if you type www.com, you don't know how to use the Internet. That's not a real website, it's the computer trying to teach you what you're doing wrong."
I was 10, she was 40. She totally believed that, and I was internally laughing at her for years.
A childhood belief about websites

others believed things like this
- I used to believe that Internet banking printed money out of the printer in our home like an ATM. Anon
- for my first Internet year, i believe all the ".ca" sites stands for Calif State websites.— ray cheng
- I used to believed that the children borned by tucking the finger info nunptial rings!!!— Silvia Mazzei
- I always thought that "elbow grease" was a type of lubricant until about 2 years ago. I'm 19.— Erika
- I used to beleive that the computer bugs were real creatures that lived in your pc and ate away at it.— BoBo
- For years and years I believed that tuna must be really little fish because they came in such small cans!!— Gisela