The gym is a weird place when you look around. People willingly come from all over to be in a room, and pick up heavy things. Sometimes they push heavy things, or pull heavy things, but they make themselves intentionally uncomfortable. In fact, that's what all exercise is: artificial, intentional trauma in order to trick the body into adapting positively. By picking up, pushing, and pulling overly heavy objects, you tell your body to strengthen itself to survive in more dangerous and terrible scenarios...which of course don't really exist. Your body doesn't get stronger for it's own good, it does so as an act of protest against the elements, almost like an allergy.
When we think about school, it's not always clear which model should be followed. Should students be motivated to grow and learn on their own, or should they be given moments of artificial trauma and forced to survive? Is learning, like physical strength, the result of personal pursuit, or is it a rebellious byproduct of an increasingly challenging environment? I don't think I agree with that assessment, but considering people willingly pay to spend their free time torturing their bodies in order to strengthen them, we have to wonder if there's a way to get people to do the same for their brains.