Back in the 1980’s, I had a 94 year old psychiatrist client who was still working full time. He had $6 million in liquid investments and his wife died twenty years earlier.
I asked him why he was still working. His answer was simple:
Use it or lose it.
My dentist is in his early 80s.
I trust him. He chooses his patients and does this just to stay active.
The guy drives 45 minutes to work each day.