Why do CrossFitters scale workouts?

CrossFitters scale workouts to match the session to each person's current ability while preserving the workout's intended stimulus. Scaling adjusts the weight, reps, range of motion, or movement choice so a beginner and an elite athlete can train the same workout safely and get the right challenge.

This is a direct answer from the CrossFit BC coaching team. Short version first, then the detail and the local context for training in Vancouver. If you want the same answer applied to your own situation, a coach will walk through it with you in person.