Actor Peter Graves died at the age of 83, just shy of his 84th birthday.
His publicist said he was still looking for work after 60 years in the acting business.
I have friends in their 70’s and 80’s who still speak professionally (friends Jim Tunney and Art Holst for example), not because they must for financial reasons but because they want to for personal satisfaction. More importantly, they are doing their best work in their latter years.
The truly greats in any profession rarely ever retire in the traditional sense. They may work less and/or differently but they continue to seek work in areas they love and make contributions with their skills and expertise.