Majority on the ship are going to be under 40. Most people start their military careers between 18 and 22, and most people leave at it before 20 years of servi

Majority on the ship are going to be under 40. Most people start their military careers between 18 and 22, and most people leave at it before 20 years of service. Squadron commanders, senior medical officer, Dept heads and the CO and Admiral would most likely be in their forties or early fifties.