New cricket academy has 11 year olds doing weighted squats

Son joined a cricket academy this month. Second week, the fitness trainer has his batch doing squats with a weight plate held at the chest. They are 11. I'm an orthopaedic surgeon, so I know my bias. Strength work for children isn't the problem in itself. My questions are simple: who planned it, what weight, how many, and who checks form when there are twenty kids and one trainer. Nobody at the academy could answer when I asked. I'm not pulling him out. He loves the cricket. Has anyone had a straight answer from an academy about how their junior fitness sessions are planned? Or is it just whatever the trainer did last year?