Not so much. I retired from the Border Patrol after 25 years. Perhaps Chuck Norris could still still chase a 16 year old scraper illegal aliens through the desert after the age of 57 and still have the strength to take them down without getting killed but few can.
Its a young mans game and chases and fights occur daily.
The reality is that most all of the agents who reach 57 are have been in management for several years already. If after 20 or 25 years your body is not breaking down from the countless injuries you have suffered over the years then you probably were not working very hard.
Another reason this is a good policy is that its keeps management young and dynamic. Otherwise you get managers that would camp out in a comfy post for decades and not give anyone else a chance to lead.
Just like the US Senate.
Hubby is a retired firefighter...watershed expert. He ran the hot shot crew here for many years and then after was usually one of the first strike teams out. Bodily injuries? Hah! He retired after 33 years at the age of 53 because he noticed his crew was having to cover for him. Within 2 years he had neck surgery and his back and knees were so bad he can barely walk. Too many years running up and down hills.
Most people have no clue how demanding these types of jobs are.