I guess partly it is a language issue that comes out as uncaring. English is not my main language so I can understand some people's difficulty in conversing not in their native tongue. At the airport one time I was actually very disappointed with our airport security. He was very curt in replying to a foreigner. But it was obvious it was because he was not comfortable speaking in English.Wrong lining color here too on my last bag. I did mention it to Marina during correspondence on another topic, not asking for anything, just brought it up in passing that maybe double checking lining colors would be a good idea. She continued the correspondence but ignored that I mentioned that error and I was a bit surprised that she didn’t include in her brief email even a short ‘oh, sorry about that’ since that does not cost anything, and I was not even asking for anything to be done about it.
I also realized when I went on business trip in Japan (my first trip there a few years back) that we should speak in as much plain English as possible to be more easily understood by some people there. Even in the office where we were having a seminar. Idiomatic expressions should be avoided. That was an eye opener for me actually.