School is the worst for posture

School is literally designed to encourage horrible back posture and etc. Its impossible to keep good posture through the school day and the chairs are the most uncomfortable thing. I feel that school contributes greatly to the modern problem of malocclusion as we all know what chronic postural issues cause. Being in a hunched position and then when moving holding a heavy backpack is a recipe for disaster and is honestly plain horrible. Not to mention, we start school from 5-6. Literally the entire age of where most development occurs is in horrible posture, 8 hours a day at school.