I've watched people who spent years preparing, sacrificing everything for one more attempt, get told they'd simply aged out with no path forward left -- that kind of cutoff can feel like the system giving up on someone's dream through no fault of their own effort.
Public administration researchers note age limits exist partly to ensure a reasonable number of working years remain post-recruitment to justify the significant training investment government agencies make in each new recruit, a resource-allocation tradeoff separate from any individual candidate's ability.