100-year-olds say working beyond retirement age is what keeps them going
cnbc.com
cnbc.com
Other than "because emotions", is there any reason to suspect that healthy-over-100 people would have some special insight into why they are so far to the right edge of the bell curve? You could also ask mothers of L<=>R -switched babies ( https://en.wikipedia.org/wiki/Situs_inversus ) what they did, to cause that to happen.
(Yes, I'm well aware that lacking daily routines, positive social interaction, purpose to life, etc. can be quite bad for one's health. And "gotta work!" can check many of those boxes.)
Is this a propaganda piece to tell the rubes why Social Security won't be necessary?
And if you're actually accomplishing something why would you want to quit?