Muffin Thoughts & Muffin Questions

Black Butler?

I know that many people prefer the Sub of Black Butler, I don't particularly have anything against it.However, what bugs me is-
Sebastian. He's British, he was written British, yet he only speaks Japanese.
Prince Sohma. He was written Indian, lives in India. He then moves to England. ONLY SPEAKS JAPANESE. I suppose what I like about the English Dub is that they get the accents right. I suppose to me it feels more authentic. Does anyone else feel this way? Muffin is confusion.