4 points
The same character encoding that would break emoji would break a significant portion of the words names, so if your system can’t handle it, then you deserve all the trouble that you run into.
Unicode isn’t that hard.
You’re not wrong, but some systems, especially smaller ones are intended for English-only situations (or originally were) so non-English language situations might not be as well tested and/or may cause things to break.
Remember there are some sites that still refuse service if you put a " in your password. I’m not saying it’s right, but it’s a definite possibility.
