I have a challenge, can you distinguish which character set/s belongs to Japanese & Mandarin?
There are of course differences between Kanji / Hanzi but the “difficult” part is knowing which language is which simply by glancing (unless you know either 日本語 or 中文 that is).


In contrast, do you know any words that are near identical when written down between two “alphabetical” languages based on their spelling?


In Hong Kong, Macau (both speak majorly Cantonese), and Taiwan (mostly speaking their own flavour of Mandarin, Hokkien, and a few other ones too depending on where you are), they use traditional Chinese characters while the mainland PRC (huge pot of all sorts of dialects and other bits, but Mandarin is the standard language) is simplified, and somebody who knows one is not always able to read the other.