a123. You don't seem to grasp the real situation here. You are now almost at the top of your career as a baggage handler. This is manual work and you will be doing a lot of it outside in all weathers.
You are comparing this with someone starting out on a professional career, who will be sat inside with a cup of coffee watching you work.
They will be moving up the career ladder for may years, steadily increasing their experience and earning potential, while you grow old and bitter with your lot!
When you are 50+, suffering with a bad back etc from all of this fun you have had as a baggage handler, you can think back to this decision you made and reflect!