Why did Percy Jackson say no to immortality?

Answer 1

He says at the end of the book that you can live as a god forever with the same stuff but as a mortal it can always get better. Plus he has a more important wish that he wants. Because 1) Annabeth 2) His promise to Luke and 3) He was too young to become immortal

Answer 2

Percy Jackson went on about 20 quests, saving-the-world ones and quick combat ones alike. He accepts them because he wants to help. Percy hates feeling like he in restrained from doing something to help somebody. No doubt about it, he would save anybody, as long as they're worth saving. Even when they aren't, Percy hesitates to kill other demigods because he thinks they are "brainwashed". You now what? He's absolutely right.

Answer 3

to get his mother back who was captured by Hades

Answer 4

Because, if he is immortal, he wouldn't get to be with Annabeth.

Annabeth gave up immortality too,in the third book.(When she was offered to join the Hunters of Artemis)