Final answer:
The phrase 'walk off' suggests an outdated and casual attitude towards injuries like concussions, which is now taken more seriously in sports due to increased awareness of long-term health risks. The introduction of more padding in sports, due to moral hazard, may have led to players taking greater risks during games, potentially leading to more serious injuries.
Step-by-step explanation:
The phrase "walk off" suggests a casual attitude towards injury, implying that a player could simply shake off or ignore the effects of a head injury and continue playing.
In the context of sports safety, it reflects outdated practices that have since evolved due to increased awareness of health risks associated with concussions.
The concept of moral hazard in sports such as football and boxing may have affected safety by creating a false sense of security, leading players to take greater risks because they feel protected by the additional padding.
This could inadvertently increase the number and severity of injuries since players may engage in more aggressive behavior, assuming that the enhanced safety equipment will prevent injury.