I was born in 1939.
Have accounting background, but did other jobs when Computers were coming online.
Became self employed doing books for small businesses in 1980. Had as many as 19 clients at one time-—employee gross of $69,000 a year to $3.2 million. Mostly one man shops.
Last client retired 2 years ago..I did his books for over 53 years.
He is now 86 I am 84.
That’s impressive and it (again) makes me wish I would have gotten a degree in something more of a trade. I have a science education degree.