Final answer:
Having the lanyard that connects to the PWC's start/stop switch attached to your wrist or PFD is important for safety reasons in case you fall off the PWC.
Step-by-step explanation:
In case you fall off, it is important to have the lanyard that connects to the PWC's start/stop switch attached to your wrist or PFD for safety reasons.
This lanyard is commonly referred to as a kill switch or engine cutoff switch. It is designed to stop the engine of the personal watercraft (PWC) in case the rider falls off. This prevents the PWC from continuing to operate without a rider, reducing the risk of accidents and injuries.
Attaching the lanyard to your wrist or personal flotation device (PFD) ensures that it stays connected to your body even if you fall off the PWC. This allows the engine to automatically shut off, preventing the PWC from becoming a hazard to yourself or others in the water.
It also helps in locating the rider more easily, as the PWC would remain stationary rather than continuing to move away.