What is the main purpose of a seatbelt?

The main purpose of a seatbelt is to prevent injury during an accident. When a vehicle is involved in a collision, the sudden stop can cause occupants to be thrown forward or ejected from the vehicle. Seatbelts are designed to secure the occupant in place, significantly reducing the risk of severe injuries or fatalities. They work effectively by distributing the forces of a crash across the stronger parts of the body, such as the chest and pelvis, which helps in minimizing the impact.

While it is true that seatbelts can help keep you from moving around in the vehicle and can assist the driver in maintaining control by ensuring that passengers remain seated, the primary life-saving function of a seatbelt is its role in preventing injuries during crashes. This emphasis on safety is why wearing a seatbelt is often mandated by law and is considered one of the most important safety measures for occupants of a vehicle.