There’s a famous animation showing a driver in a car asking the question – “Do I need to show my indicator to cut across eight lanes? No? I’ll turn now”. Well, they did, and what followed was a commotion of chaos and explosions.
Obviously, this was only an animated series and, of course, which to some extent was greatly exaggerated. The reality is, people don’t always know what the correct procedure is when it comes to changing lanes.