Why would Dragon Ball creator and manga artist Akira Toriyama feel the need to go through the trouble of changing his hero’s hair color for a fictional condition?
But Toriyama can depict blond hair just by leaving Goku’s hair uncolored, since the manga is published in black and white.”
Of course, all this raises another question: Why not just give Goku blond hair from the very beginning?
That’s definitely true, since while artists working on the anime portions of the Dragon Ball franchise have to color Goku’s hair blond, in the manga it’s left the same color as the paper the comic is printed on.