Do you understand the scope of what ambitions of the supreme king/conqueror means? It goes far beyond the desire to find a fish pond and defending himself against scrubs.
He hid his face to protect his family. As a child he didn't give a shit, until his sibling was attacked because of it. He wanted to be strong for his family. He had kingly ambitions as he was always the one to take charge, even Big Mom felt threatened by Katakuri just interfering with her fights, hence telling him to stay back since he is "just" her son.
He hid his face to protect his family. As a child he didn't give a shit, until his sibling was attacked because of it. He wanted to be strong for his family. He had kingly ambitions as he was always the one to take charge, even Big Mom felt threatened by Katakuri just interfering with her fights, hence telling him to stay back since he is "just" her son.