If people lived forever, why would they ever retire? I imagine you'd take a 5 year sabbatical every 20 years or so and you'd probably even head to school a bunch of times to change careers if you got bored of centuries of the same vocation.
My attitude doesn't have anything to do with statistical reality.
Where are 95 years olds going to work? What are the going to be capable of doing? Uber drivers? They are going to have to fix a bunch of stuff rather than just extend life for this to be feasible. I hope they do that first, and worry about extending life after they have fixed degeneration.
Or we, are going to have to re-arrange our social/economic systems considerably so work isn't such necessity.