Why did Tang Monk name Sun Wukong Sun Walker?

Everyone who has read Journey to the West knows this. King Jinjiao shouted "Sun Xingzhe", "Zhe Xingsun" and "Xingzhe Sun" in that part, and he was so happy. But why did Tang Monk name Sun Wukong Sun Walker?

Wukong’s surname is Sun, because he is originally a hozen (actually a macaque). For a little monkey like the picture below,

行 means walking. Look at the picture below. Does this small seal script look like a walking person?

A person is a person with certain attributes. Such as scholars, doctors, and elderly people. Later, the word monk evolved into a Buddhist term to refer to a person who is a monk but has not ordained. Because after Sun Wukong put on the golden hoop, he looked very similar to a practitioner with hair, so Tang Monk called him a practitioner.

Similarly, Wu Song in Water Margin is also dressed as a traveler. Therefore, Wu Song's nickname is "Wusong the Walker". Look at these two travelers, do they look a little similar?