neighbourhood

I thought the "We Card" logo in the window for businesses that sell tobacco (meaning they'll ask for your ID card) meant there was some kind of identification program called a "We Card", not yet recognizing that card can be a verb.

We Card holder

When I was little, I used to believe that streetlights turned on automatically when I walked under them, like they recognized me. I was convinced I had a superpower! One day, I ran underneath to "turn them on," but nothing happened... That’s when I realized it wasn’t me—just a timer.

timeo

Y'all know that ice cream man song that has the lady that says "HELLO" right? Well when I was 8, I literally thought the ice cream man recorded my mom's voice and used it in the song.
The hello actually sounds like my mom when she answers the phone. That hello is a running joke in my family still to this day.

Jessica

I used to believe that hotel lifts had secret passages that would have led
You to the beach, if you were staying there in Summer.

Anon

I used to believe that shopworkers always had to question people about why they were buying something when they went to the checkout to pay for it.

Anon

When I was a child, I used to believe that there were little guys inside traffic lights changing lights colours with small buttons. One day, I was walking with my mother in the street and I judged that it took too much time and I slamed at the light saying "Can anyone change colours, please?". My mother was surprised and she said to me how a traffic light worked and that there were not a few guys who change colour. I was shocked ;-;.

ig:nid.hogg666

I thought I lived before stoplights existed because we were stuck in traffic. We were going on a ramp towards a bridge.

Anon

I thought you were supposed to drive down the center of the road.

Cassiopeia