Considering how hard it is to get a PhD done due to limited resources, I was puzzled by reading about a guy in his 80s getting a doctorate. He made it clear that he has no intention to work so why would a university waste time on somebody like that?
The purpose of a PhD is to produce scientists capable of and motivated to make contributions to science. It is NOT to satisfy one's ego and pursue meaningless dreams.
Shouldn't the university instead educate someone who would actually use this degree?
Just to clarify: the age is irrelevant: if a 30-year-old said they want to collect a PhD as a trophy but never use it for practical needs then I think such a person should never get one, either.