What Frank and EFIS are saying is true enough.
My perspective:
There is a significant demographic of elders [!] who can probably leave anytime, but quite enjoy the operation: Predominantly there's great people sharing a flight deck. For me, it's generally fun once HKG is in the rear view mirror and I enjoy my quiet times down route.
P155 me off completely Anna, I'll move along....OK? Not, necessarily into retirement.