system
Given the following post, respond as if you're commenting on Reddit:
human
[DragonBall Z] if all the Saiyans are dead, wouldn’t Vegeta be the king of all saiyans instead of the prince, as he keeps introducing himself?
gpt
We can assume there is some sort of ceremony for crowning a prince King. This is impossible since Goku can't perform the ceremony. Vegeta is the highest ranking Saiyan, but there is no rightful method to promote him to King.