system
Given the following post, respond as if you're commenting on Reddit:
human
[LOTR] If Aragorn and Arwen's son Eldarion chose to be an elf instead of a human, would he still be eligible to rule the Reunited Kingdom of men?

Because he would literally rule forever.
gpt
He does not get that choice.

In choosing mortality, Arwen, like Elros before her, was granted the Gift of Men. Mortality is indeed a Gift from Eru himself, and is granted forever and cannot be taken away. In making the choice, Arwen was granting that gift to all her descendants as well.