olderairhead,
If you are a signatory to ICAO, which we are in PNG, Australia, New Zealand, come to think of it; most of the world you abide by their decisions.
I really think the post re age 65 was more about internal country Ops, where the age 65 limit does not apply, but PX management want to clear the deck of expat's to make way for under performing National pilots (B737 in water) and so forth. It would be very easy to schedule under 65's for International Ops, and keep the over 65's for Domestic. Hang on a minute, even easier to have no crew over 65.
Tonight the Government Falcon 900 flew POM - CNS - POM using a ANG8091 callsign. Was the F900 carrying out an RPT flight in lieu of a Fokker or Boeing?