Eventually yes the youngsters will stop buying her new albums. But big deal. There’s enough oldsters in her fan base to keep her selling out arenas until she doesn’t feel like doing it anymore. Metallica are in their 60s and sold out many of the same arenas for the same number of nights at Swift. And of course she still might get another generation, look at the Stones. And if she never sells another record or ticket, she’s freaking rich. So, whatever.
It’s different for women performers, though. As I say, their fanbase eventually becomes old gay men.
The only exceptions are heavier rock performers, like Pat Benatar.
Quote: “There’s enough oldsters in her fan base to keep her selling out arenas until she doesn’t feel like doing it anymore. “
That is the thing about her music. It is her singing about herself. And it is her singing about topics that people outgrow. My daughters used to love her. Now? They have outgrown her music.