What is the primary reason for requiring seatbelt use during takeoff and landing?

The primary reason for requiring seatbelt use during takeoff and landing is to ensure passenger safety during these critical phases of flight. Takeoff and landing are considered the most hazardous parts of any flight, with a higher incidence of accidents occurring during these times. By securing passengers with seatbelts, the risk of injury from turbulence, sudden changes in altitude, or hard landings is significantly reduced. Seatbelts help keep passengers properly positioned in their seats, preventing them from being thrown about the cabin in the event of an unexpected movement of the aircraft, thereby enhancing overall safety.

While there are other considerations surrounding the use of seatbelts, such as minimizing distractions for pilots and complying with regulations, the paramount concern is the safety of everyone onboard, especially during those critical moments of a flight.