When it comes to Kanji from Japanese, it gets annoying upon people misidentifying it as "Mandarin". Don't get me started on writing Japanese names all in Kanji since that too gets mistaken for "Mandarin" (i.e 近藤浩治) when it's not. I mean let's say you're learning Dutch and can that get misread as "German" since the alphabet is near identical.

The thing is, if you're learning another language (i.e. a Slavic one like Ukrainian, gets mistaken as "Russian" due to Cyrillic), you get the picture. It happens A LOT with 漢字, even if I handwrite in nihongo (not zhongwen) Like, are you able to distinguish which character set is Japanese & Mandarin since they both use 漢字: