Final answer:
A player without shin guards should be removed from the game to ensure their safety and adherence to sports regulations. Protective equipment like shin guards and protective cups is critical in preventing injuries. The concept of moral hazard suggests that more padding might lead to riskier behavior, which needs to be managed with proper training and awareness.
Step-by-step explanation:
When a player returns to the field without the requisite protective equipment, such as shin guards, it is crucial to enforce safety regulations. In this scenario, the player should be removed from the game until he complies by wearing the necessary protective gear. This not only ensures the player's safety but also upholds the integrity of the sport's safety requirements. Along with shin guards, other protective gear like a protective cup is essential in sports to prevent serious injuries, especially in areas such as the groin.
Regarding the problem of moral hazard in sports, it's an issue where increased safety measures might lead to riskier behavior by players. In sports like football and boxing, more padding might lead athletes to play more aggressively, potentially increasing the risk of injury despite the additional protection. Thus, it's important that safety regulations are balanced with proper training and awareness to ensure the overall safety of the sport.