When I was in my 20's and 30's, I did not think much about the future. The only date I really gave serious consideration to was where would I be on December 31, 1999. As far as aging goes, I also pictured myself in a rocking chair on a rickety porch of an old house in the mountains somewhere, with a rifle across my lap, prepared to yell at law enforcement they were not taking my land, no sirree.
That's really it for mental images. Much of the time I assessed my present situation every 5 years or so to determine if I was traveling on a path on which I preferred to continue. It wasn't until I hit my 50s that I began to imagine what it would be like to get older. And you know what they say about making plans . . .
You can read more in my personal blog today at this link: Reflections of Same Old Birthday that Rolls Around Every Year.