> is there an actual expectation of being able to tell the actual ethnicity/countries apart?
Facial structure, there are some obvious ones in ALS. But generally speaking, it's fashion that gives it away. I can spot a (relatively recent) Japanese immigrant from a hundred feet away by her clothes. It's a bit like if you see someone in Europe with a baseball cap, you can be almost certain they're American. Sandals with socks? German. Etc.
Facial structure, there are some obvious ones in ALS. But generally speaking, it's fashion that gives it away. I can spot a (relatively recent) Japanese immigrant from a hundred feet away by her clothes. It's a bit like if you see someone in Europe with a baseball cap, you can be almost certain they're American. Sandals with socks? German. Etc.