Trying to learn Japanese as a hobby via Busuu app and had this thought.
Just look at this common kanji. https://jlptsensei.com/learn-japanese-kanji/時-ji-toki-time-hour/
Or this one: https://jlptsensei.com/learn-japanese-kanji/箸-cho-chaku-hashi-meaning-chopsticks/
你也可以不加思考就噴出一堆話，其實。 (zh-hant)
As for kanji, it’s just practice and muscle memory, same as English spelling. Also, saying “East Asian” is just too broad.
I was thinking more about writing and less about speaking. Easier to fix goof ups in Latin scripts. Most characters are one or strokes.
And I did check if ‘East Asia’ is a thing.😅
https://en.wikipedia.org/wiki/East_Asia