You do make a fair point but it's a system to which you choose to join or not. I am no defender of our rostering and have had a worse deal than most in that respect. What I would say is this. Under normal circumstances you quickly achieve some choice and control over your life and that is far far better than any system I know. The stories of champagne lines of work being picked by the most senior is not strictly true. Lines are pre constructed at stage one so you can't pick with 100% control.
If you want to complain and be vocal about it once your here then do it quietly because you won't find any support to change it and you will probably come round to its merits after a little while.