Gi-hun's mother is sick with diabetes and her feet may need to be amputated. Gi-hun already has a lot of debt and the family really can't afford to pay for medical care. His mother leaves the hospital on her own and refuses to go back in after Gi-hun's urging. She points out all the other things they need the money for and how they can't afford to purchase healthcare. For many people, even in advanced economies, health care is a luxury. People must make decisions about how to allocate their income and which items to spend money on. Such a careful cost-benefit analysis may be deadly.