Well.. I’m further north east and my experience is somewhat different. My only point was that Europe is not as homogenous as some people keep implying (most people still primarily communicate in their native language which creates a lot of more or less isolated bubbles)

> and still don't understand why the colors of the messages in green or blue matter

Because it indicates a fallback to standard SMS/text messaging which means all the more advanced features (which everyone expect messaging apps to have these days) stop working if you get a text from an Android device.