Ahhhh, you ain’t old yet. I got tennis shoes older than you. Literally. I still have a pair of original Converse tennis shoes I bought when I was playing basketball in high school back in the 1970s. Why I still have them, I don’t know. But they are still in my closet along with a slide rule I used for math classes.

That’s a good indication of old age. Having things and memories that were once commonplace, but are now totally obsolete.