A huge number of posts about auto repair
Your brakes will send you other signals besides the sound of wear indicator against turning rotor when brake repair is warranted. Does your brake light go on when your parking brake is disengaged? Then have your brake fluid level checked; it may be too low. Pooling light amber fluid and or a pungent odor also indicate issues with your brake fluid. Have your brake repair technician check your fluid line for leaks. Have you noticed either your brake pedal or your wheel vibrating? Rotor surface issues could be developing.