system
Given the following post, respond as if you're commenting on Reddit:
human
[DBZ] Why the hell hasn't Goku wished for immortality?

He is the strongest being in the universe, guardian and protector of all good. The only thing stopping him from saving the world in any given plotline is him dying. On top of that, gathering the dragonballs is more of a relaxing day trip than some grand arduous journey it used to be.
gpt
He basically is immortal. He may be "dead" but he's not some random ghost. He gets to stay himself and train with the kai's. Like you said in your response to the other comment, Goku likes fighting, eating, and training above all else. Being dead really allows him to do this more than being immortal on earth.