Yes HIALS raises a very valid point.
Why work yourself to absolute exhaustion, miss your kids growing up and find yourself at 60 or 65 with a bit of cash but a wasted life?
European airlines are already offering this part-time option and when retarded Australian work concepts recover from maulings by the likes of the Howards and Dixons of this world (due to the shortage Dixon helped create), Australian airlines will see that they too need to offer lifestyle options.
Whatever you do though, dont work for say oh, er...Dragonair or Cathay in Hong Kong. They actually proudly operate using 1800's industrial relations concepts.