"Older air traffic controllers can head off mid-air collisions at least as well as younger controllers, using experience to compensate for age-related declines in mental sharpness"
Like flying this is bulldust. The only people who need the lightning reflex is a fighter pilot or BMX rider.
Controllers like airline pilots are mostly experience and adhering to the rules.
Seems to me they'd be staying longer if they were treated properly.
In the fifties in Oz pilots were regarded as too old at 45 and had to retire.
Who decided THAT?
Bet it was young ground dwellers... Psychological Association people perhaps?