* He protects his friends and family: Percy is willing to risk everything for his friends and family. He goes to great lengths to protect Annabeth, Grover, and even his mother from harm.
* He has empathy: Percy is sensitive to the feelings of others. He understands the fear and anxiety his friends experience, and he offers comfort and support. He also feels empathy for monsters and demigods who are forced to fight in the Underworld.
* He's loyal: Percy is fiercely loyal to his friends and family. He stands by them through thick and thin, and he always tries to do what's best for them.
* He's compassionate: Percy shows compassion for those who are less fortunate. He stands up for those who are being bullied, and he tries to help those who are struggling.
While Percy is initially struggling to understand his powers and his place in the world, his caring nature is a core part of his personality. He doesn't hesitate to help those in need, even when it puts him in danger. This makes him a likeable and relatable character, and it's one of the reasons why he is so popular with readers.