User blog:CaptainFlowerss/English names

Ok I know this.. could NOT be needed, and it's my being idiotic on Naruto, but I'm still gonna say it cause I trust the community and not my own research. Why can't we use English names? Naruto has shown us many characters with names of Japanese origins; Might Guy, Rock Lee, Asura and Indra origins being Sanskrit, the language of Ancient India and not Japan. So, with these evidence of names not of Japanese, why can't we use names like Cody, Zeus, Hades in-universe, seems kinda dumb to restrict us from doing so when it happned in-universe.