What is the purpose of wearing a seatbelt while driving?

Wearing a seatbelt serves the critical function of keeping the driver safe in the event of a collision. Seatbelts are designed to restrain occupants during a crash, minimizing the risk of injury and increasing the chances of survival. In a crash, unrestrained passengers can be thrown forward or ejected from the vehicle, leading to serious injury or death. The seatbelt acts as a barrier, preventing excessive movement and helping to distribute the forces of a crash across the stronger parts of the body.

While preventing damage to the vehicle, ensuring the seat does not become worn, and improving the driver's posture may have some relevance to the overall driving experience, they are not the primary purpose of seatbelts. The foremost intention behind this safety feature is to protect human lives, highlighting the importance of consistent seatbelt use for all occupants in the vehicle.