Old person interview

I would avoid doing mostly historic questions OP (what was WWII like or what was the Cold War like) and shit like that. Maybe one or two if he had any interesting information on them, but otherwise, do some cultural questions. How was school life like? What are things people do today that they didn't do then? Things that you could ask someone at about any age, but at something like 80, the answers will be much more rare.