Smallwing: you are absolutely right, logging P2X for S/O in CX but for KA S/O because they are under training, they will log as P1U/T (under training) and subsequently P1U/S (under supervision) until they get command (P1).
For the Mr 29 S/O, his youngest classmate I heard was 18. Oh, u know her gf?!?
Since pilot retirement age is being regulated by law, and cannot be extended unlike lawyers or doctors whom they can worked until their deaths. Joining at younger age will give a bigger lump sum of pension. For example, based on a 7% return, joining at the age of 24 will have doubled the amount compare to 30.
MNG: Go for KA smaller Co, less politcs. Money different is minium.