What is the main reason for using a helper when backing up?

Using a helper when backing up is primarily about safety, specifically reducing the risk associated with blind spots. Large vehicles often have significant areas that the driver cannot see directly, which can lead to accidents. The helper acts as an extra set of eyes, keeping an eye on these hidden zones and ensuring that the area behind the vehicle is clear of obstacles, pedestrians, and other vehicles.

This collaborative approach helps the driver maneuver safely in situations where visibility is compromised, allowing for more precise and cautious backing. While navigating tight spaces is essential, the focus here is on preventing accidents by ensuring that all blind spots are monitored effectively. This enhances overall situational awareness, making the backing process safer for both the driver and others nearby.