Some of the old just like the toys they played with in the sandbox. "The best of all time." The best of all time might have been Enrico Caruso, but to the oldsters of his time he "sucked", and the best of all time was Adelina Patti. No point debating them. Let them listen to Perry Como and the Swinging Blue Jeans. "Classic rock" indeed!
Everything sucks, It Was a Really Bad Year.
If someone is too screwed up to appreciate classic American culture, and classic American music, that’s their business.