It wouldn’t be wise to start anyone with deep squats, lunges, etc. How is that a good idea? If you don’t know how well they will handle a half squat, why would you jump right to a full squat let alone a deep squat? No one wants to start with the basics anymore. If you don’t know how well your client can move at all joints and you have them do any exercises, you are not following the guidelines we are supposed to be. And if you are loading them right off the start! Please tell me your not.