I'm going to bale out at xmas after working for 45 years. I think the standing up all shift on factory shop floors has helped the decline of my knees.
I don't like my job, hate the shifts so jacking in at 61 is an easy decision.
The only trouble is my final salary reduction factors are so high if I'd gone at 60 I'd have lost over a third of it and even at 62 or 63 I'll lose a fair bit.