Some, unable to resist the urge from inside even though they can't exercise it, pace the bars, snarl and lash out at their keepers, or throw themselves against the bars until they do themselves damage. Even open and enlightened schools are likely to create an environment that, like the cheetah enclosures in enlightened zoos, allow some moderate running, but no room for the growing cheetah to develop the necessary muscles and stamina to become a 70 mph runner. A zoo, however much room it provides for its cheetahs, does not feed them antelope, challenging them either to run full out or go hungry. Schools similarly provide too little challenge for the development of extraordinary minds. Without special programming, schools provide the academic equivalent of Zoo Chow, food that requires no effort whatsoever.
Some children refuse to take in such uninteresting, dead nourishment at all.
To develop not just the physical ability but also the strategy to catch antelope in the wild, a cheetah must have antelopes to chase, room to chase them and a cheetah role model to show them how to do it. Without instruction and practice they are unlikely to be able to learn essential survival skills. A recent nature documentary about cheetahs in lion country showed a curious fact of life in the wild. Lions kill cheetah cubs. They don't eat them, they just kill them.