Why does this topic always comes up when talking about longevity? Did people read about this in a book or something? So what if they don’t die? I don’t consider

Why does this topic always comes up when talking about longevity? Did people read about this in a book or something? So what if they don’t die? I don’t consider those people evil, I’m not rich either. The thought of living forever or for a much longer period of time gets me very excited. I don’t care if the elite live longer or not.