Another reason could be related to his personal growth. He might be trying to master the power of the eye in private. Naruto has always been one to face challenges alone at first. By hiding his eye, he can focus on understanding and using its power without distractions or the pressure of others' expectations.
One consequence could be that his friends might start to suspect him. Since Naruto is usually an open book, hiding something as significant as his eye could make them wonder what he's up to.
She could be a former pirate captain herself. Maybe she was one of the most feared pirates in her time, and her skills and reputation were passed down to Luffy in some way, even if he didn't know it was from his mother.
The following novels involved protagonists who lost their left eye: " My Left Eye is the Magic Eye,"" Mr. Full-time Ability," and " The Goddess Is Knocking on the Door."
Odin's loss of his eye was a significant act. He did it to gain profound wisdom and insights. This sacrifice was part of his journey to become a more powerful and knowing deity.
Thor lost his eye in the comics. This event had a major impact on his journey and how he dealt with various challenges. It was a defining moment for the character.