A childhood belief about cars

When I was young, I was always confused about how, at night, the car-lights on one side of the road were always red, while the ones in the other one were white. It never occured to me that the cars were going in different directions, and for years I was convinced that there were designated "white-light" and "red-light" lanes. But it always confused me that we were always in the "red-light" lane, since I had seen the white front headlights once when my mom was pulling into the garage. I rationalized that the lights change color as you are pulling into your garage.