I’m a Boomer, but I began to appreciate the music I post on FR when I was a teenager. Incidentally, President Trump (born 1946) is a big fan of Elton John and other pop stars of the Nixon-Ford-Carter era.
“Old” is not a function of chronological aging but mental aging. President Trump is in his 70s but he’s definitely not old; there’s a video of him singing along in his car with his family - and the song IIRC was something from the late 2000s/early 2010s.