I think the other thing is, a 65 year old developer would have started developing around 1970. While there were certainly people developing software back then, it was nowhere near as many as there are today, so the pool of people 65 and up is obviously going to be quite small.
I'm quite hopeful as the people who started during the boom of the 90's age that the pool of older developers will increase and we'll discover that people aren't really 'aged' out of jobs. I love what I do and have zero interest in management or starting my own company, so I hope to stay gainfully employed as a developer at least until 60 (at which point I may decide to work part time or pick up consulting gigs as I tide myself over to my peak social security withdrawls at age 70).
I'm quite hopeful as the people who started during the boom of the 90's age that the pool of older developers will increase and we'll discover that people aren't really 'aged' out of jobs. I love what I do and have zero interest in management or starting my own company, so I hope to stay gainfully employed as a developer at least until 60 (at which point I may decide to work part time or pick up consulting gigs as I tide myself over to my peak social security withdrawls at age 70).