depends entirely on level of flexibility and lever lengths. I have had great athletes who have huge issues getting ATG due to long femurs and short torso’s. Puts them in a terrible position to try to keep bar centered. In those cases, I would rather see higher squat where proper mechanics are not altered. Most guys I know who squat deep and heavy have had knee issues, shoulder issues, and back issues. Granted, these are powerlifters who lift a lot heavier than most. I just take it on a case by case basis. I have a RB who will squat super deep with 475 lbs for sets of 5 while I have other kid’s who can"t get below parallel to save their lives.