I do wonder if the answer is for the more senior pilots approaching retirement consider taking their pension at a reduced rate and continuing employment on a part time(3weeks on, 3 off) basis. More time for gardening (ppruning)
Consideration could also be given by those continuing employment after they have retired from one company on a full pension withdrawing from the market. This applies particularly to ex BA pilots retiring on a full pension, then going into the many start-ups such as easyJet, Go and Ryanair. They hardly need the money and while they might enjoy the challenge of a new environment it should not be at the expense of people with families and mortgages to pay.
(I am one of the first)