Is it true that when mirrors are set correctly, there is no need to check blind zones?

When mirrors are set correctly, it significantly reduces blind spots but does not entirely eliminate the need to check them. Blind zones are areas around the vehicle that are not visible through mirrors alone, creating potential hazards when changing lanes or merging. Even with properly adjusted mirrors, drivers should always perform a shoulder check to ensure there are no vehicles or obstacles in areas that the mirrors do not cover. This practice is essential for maintaining safety on the road and ensuring that the driver is aware of their surroundings before making any maneuvers. Therefore, the statement that there would be no need to check blind zones is incorrect, making the answer accurate.