What must always be worn while driving?

Wearing a safety belt is a crucial safety requirement while driving as it significantly reduces the risk of injury or fatality in the event of an accident. Seat belts are designed to hold occupants securely in their seats, preventing them from being ejected from the vehicle or colliding with internal parts of the car during a sudden stop or crash. In many regions, including South Africa, it is legally required for all occupants of a vehicle to wear seat belts, emphasizing its importance for both personal safety and compliance with road laws.

The other options, while they may contribute to comfort or visibility, do not carry the same level of necessity or legal obligation as a safety belt when it comes to ensuring the safety of the driver and passengers.