>Does the presence of the sign make you behave differently when you're the car driver? Yes. When a car passes a cyclist they should leave enough room to pass

>Does the presence of the sign make you behave differently when you're the car driver? Yes. When a car passes a cyclist they should leave enough room to pass safely assuming the cyclist continues in a straight line (unless they signal otherwise). A kid may suddenly try to turn left from the right side of the street, meaning they should be given more room and the car should reduce their speed.