They are also called turn signals, or directional signals. Here in the U.S. they are usually activated by a lever that is attached to the steering column. They can be found in the majority of cars on the streets here and are not difficult to operate, even for beginners. We all learn when and how to use them in drivers education classes.
So why are there so many people who fail to use them?
Here in Texas the law requires them to be used, if the car is equipped with them, for turning as well as lane changes. But for some reason it seems more and more drivers prefer to be rude, and just change lanes without signaling at all.
This really gets me