A number of ex ka A320 skippers were in their early to mid 30s. 10years in CX, to make an early command on the 320, after doing some long haul in between. Still under 45 . Tell that to the Americans.
KA used to take on FOs in their early 50s , with heaps of command airline time . Thats seniority. It can be a bummer when it works against you.
However, Its all rather better than being unemployed and unrated.