Why do public services need aerobic endurance?

Public services need this particular skill because they can rely on a healthier lifestyle, firefighters would most benefit from this skill due to needing fewer quantities of oxygen for a set time and divers could benefit too. It's mostly needed for running and hardly any public service necessitates this fitness component but it remains essential for a healthier lifestyle which public services lack. a healthier lifestyle is vital therefore training in this profession is required.