The streamer Pikamee is mixed-race and says she has naturally blonde hair. Anyway, your other point about more caucasian features is interesting. I can think of a lot of cases where it would make sense, like Full Metal Alchemist which is set in basically Germany or Re:Zero where it is set in a place based somewhat on european fantasy. But it does show up in other weird places.
The streamer Pikamee is mixed-race and says she has naturally blonde hair. Anyway, your other point about more caucasian features is interesting. I can think of a lot of cases where it would make sense, like Full Metal Alchemist which is set in basically Germany or Re:Zero where it is set in a place based somewhat on european fantasy. But it does show up in other weird places.