Why do we have to run the Mile for the Phyiscal Fitness testing in schools?

Also what is the time average that a girl should get when she is running the mile? What should the time be set at for people to rerun it? Or are we just supposed to run it once?Why do we have to run the Mile for the Phyiscal Fitness testing in schools?its a good indicator if a person is fit or unhealthy. It tests a persons aerobic and cardiovascular endurance, speed, and respiratory capacity. It's the best thing to do for physical testing. For a girl, to be considered in fit, most states require below 9 minutes and around 8:30 to 9 minutes for a guy. These are just approximate, chances are if you are fit, you will get much below this. A good mile is anything under 8:00 for an average person. A fit person should get no more than 7:30 and most track athletes get around the 5s or 6s.

For a rerun you should do better than your last time. Usually you'll do it twice, on different days.