I'm taking the driving license and my instructor told me that I have to downshift to slow down the car, without using brakes. He said that I have to use brakes only when needed (when I need to stop or in case of emergency).
Is it correct? Could downshifting without braking damage the clutch?
PS: I'm also doubtful about this because when you downshift without hitting the brake, the red lights on the back of the vehicle do not turn on, so people behind you cannot understand that you're slowing down.