[jds375]

I had a very similar experience as a child. I always wondered how other drivers could tell which way we were turning. My parents told me that they can tell from your turn signal. 6-year-old me just thought turn signals entailed the green flashing arrows on the dash (not also on the car’s taillights). I just assumed all drivers were tall enough to see into the other car and tell from their dash (for at least the next year or so)!

[dgunay]

Funny, I remember as a child wondering how my parents knew how to get where we were going. I saw the green lights on the dash (and couldn't see the signal lever from the backseat) and just thought that the car was smart enough to give them directions.

[LeoPanthera]

You were right eventually!