What is the purpose of a seat belt while driving?

The purpose of a seat belt while driving is fundamentally to keep you safe in case of an accident. In the event of a collision or sudden stop, a seat belt is designed to securely hold the occupant in their seat, preventing them from being thrown forward or ejected from the vehicle. This significantly reduces the risk of serious injuries or fatalities.

Seat belts also work in conjunction with airbags, enhancing overall protection during a crash. The use of seat belts is a critical safety measure, and wearing one is often legally mandated due to its effectiveness in protecting lives on the road. While some aspects of the other choices touch on different notions, they do not align with the primary function of a seat belt in vehicle safety.