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?
As someone who cannot read either language, I normally go by the rule of thumb that if it has a lot of curves it is probably Japanese, otherwise I assume it is Chinese. If we can throw Korean into the mix then I just need to see one circle and that’s how I determine if it is or not. It’s not a perfect system, but I would surmise that I can guess the language well above half of the time.
Also aren’t the characters for Chinese shared across all spoken versions, if so, why did you specify Mandarin instead of just saying Chinese?