RAT5
The professions you compare us to above tend to move on without having to start at the bottom again but for aircrew a move to many jobs means giving up on what you have gained and starting again at the bottom regardless of time in job.So while I can see your arguement I dont think it is that simple for flight crew.A 40 yr old CAPT with 7-8000 hrs could well find themselves in a huge loss position if your ideas are fully taken on board.