Why so many?
Many compared to what? Broadly speaking, there are some seven or eight basic colors to pick from (yellow, orange, red, brown, green, blue, purple and “natural skin” if you want to. And I’m being quite charitable in considering the whole yellow-orange-red-brown-skin spectrum discretely). So distributed completely randomly, you’d expect something like 12% of all cartoon characters to be yellow, just by chance. I actually doubt there are even that many, suspecting the whole thing fails right at its premise.
