You will find many girls seeing foreigners are actually Chinese or Korean that have learned some basic Japanese.
I know lots of girls that have worked there. Most Japanese girls don't do foreigners (not considered appropriate), so they often use fakes instead specifically for the foreigner market. That's how you get girls in Vancouver pretending to be Japanese and knowing a few words, they have worked there before.
I've never been there myself, but this is coming from the girls who have worked in Japan.
Kind of hilarious really, Chinese guy from china goes to Japan to meet some Japanese girls, gets a Chinese girl pretending to be Japanese and probably doesn't notice.
When it comes to local, most of what you guys claim is Japanese, I can surely tell you isn't. One "Japanese" girl recently asked to be listed with us and ended up actually being Korean. If there is a market for something, girls will try to exploit it for additional clients. That's the nature of the beast unfortunately. I've never met a real Japanese girl working in Vancouver, ever. Some can be reasonably convincing though. August also could flip a Japanese switch with enough Japanese vocabulary and anime noises to get a passing grade.