While I was taking subway the before yesterday, 3 American tourists asked me how to get to Asakusa without asking if I speak English. First of all, I ignored them as if I couldn’t speak English because I find them the native speakers of English judging from their pronunciation, but they reiterated “Excuse me” and asked me how to get to Asakusa slowly, so I was so irritated that I said “Why don’t you ask if I speak English before you ask me about your destination? English is NOT designated official spoken language in Japan. It’s faux pas that you ask questions without asking if I speak English first. Indeed, English is your mother tongue, but not my mother tongue. You should be courteous to non-native speakers. ” They got astounded and faced each other. Also, they were excusing why they didn’t ask saying that they could see a lot of signs written in English, but they had never offered apology for not asking if I speak English. They answered that they come from Illinois asked where they come from. Finally I was exasperated and said like that. “Learn [When in rome]. You look so arrogant. It is so arrogant attitude and not fair that you try to talk with non-native speakers in your mother tongue without asking if you can use your mother tongue ” Finally they only said “OK, we will ask others” and lost. Once I remember the time of studying abroad in USA in retrospect, Almost all Americans seemed to be lazy about learning foreign language because English is de facto lingua franca , As a result, they impose speaking English on anybody ,but ordinal human communication is not diplomacy. If it had been diplomacy like a bilateral conference, I should have answered in English or French in spite of Japan. By the way, in Japan, unlike me, almost all Japanese would be smiling and answering not objecting to the matter, so native speakers of English don’t realize necessary of Japanese language while traveling. I must be ignored I will ask something in Japanese language in USA on the other hand because Japanese is not officially spoken language in the US. What do you think?