Besides the recent ex cadets that have joined in the last couple of months and in the next couple of months, there has not been recruitment in mainline since early 2009...
Most if not all pilots in mainline are now over the age of 30.
If in the future you are successful in the selection process and join mainline, AND you are around the age of 25 or even less, think long term regarding your career.
Its all about seniority and potential opportunities. If you join in your mid twenties, chances are you could possibly be very senior in your mid forties with a seniority in the vicinity of top 300. That will mean captain on a fleet of your choice. Something for jetstar, efa, jetconnect, network, airlines of png, GA or any other company a 20 something year old is currently working for.
Yes the music may stop, One cannot predict what happens in aviation. We all know it works in cycles but from a long term point of view is there a better gig in Australian aviation?