New Zealand. Followed Aus. example and no mandatory removal of licence by the CAA due to age, however I have no idea what NZ companies, e.g. Air New Zealand, might impose, which of course is a slightly different issue being contractual by Company, not mandatory by State legislation.
However, the medical requirements get harder !
At age 74 I still maintain a CPL for voluntary work with the Coastguard Air Patrol, but before retirement I'd not been employed by a NZ company, and not previously held a NZ licence, so whereas I might have been allowed to continue flying with a NZ company, no one would start me at my 'advanced' age when I obtained my NZ licence at age 63.
Hope this helps.