What is the main purpose of wearing a seat belt?

Wearing a seat belt serves the crucial function of securing occupants in the vehicle during a collision. In the event of an accident, seat belts are designed to keep passengers restrained and prevent them from being ejected from the vehicle or colliding with internal parts of the vehicle, such as the dashboard or windshield. This significantly reduces the risk of injury or fatality.

The physical mechanics behind seat belts involve distributing the force of a collision across more robust parts of the body, like the chest and pelvis, helping to prevent serious injuries. Wearing a seat belt is one of the simplest and most effective measures available to enhance safety while driving or riding in a vehicle.

Other options may relate in some way to driving or vehicle use, but they fail to address the primary safety purpose of seat belts—protection during accidents.