When I moved out to a far away country, in the early 2000's, my non-English speaking mom started using my localised-Windows desktop as the mean to keep int touch (hello Yahoo messenger). In the 2 years that followed there was not a month were I didn't receive an alarmed phone call from her about "The computer says I am at risk!" or "There is a message in English, I don't understand, it looks bad!". Switched to OS X and the tone changed to, "there was an update and every thing went fine". I have been using OS X (macOS) for the last 10 years but I can still see in my corporate environment that localisation of OS and third parties (hello mandatory anti-virus) is not a fixed issue.