Why is it important to weight someone before they go bungee jumping?

Weighing someone before bungee jumping is crucial for safety reasons. The bungee cord's elasticity and tension are designed to accommodate specific weight ranges; if a jumper exceeds or is below the recommended weight limit, it can lead to dangerous situations, such as inadequate rebound or excessive force upon landing. Additionally, knowing the weight helps ensure that the bungee operator can properly calculate the required cord length and tension to ensure a safe and enjoyable experience.