Why is Japanese written in three different scripts?

Because they serve different purposes. Hiragana and Katakana are syllabaries, while Kanji is logographic. Kanji is used for the basic meaning of words. Hiragana is used for things like particles, conjugations, prepositions, etc.

Can Japanese be written entirely in kanji?

No. It is not possible to write standard Modern Japanese in kanji only. You may see newspaper headlines without kana particles but that is an artificial use of orthography to save space on the page. Headlines do not reflect grammatical or syntactic norms within the language itself.

Why doesnt Japanese just use hiragana?

Hiragana, though, are much simpler in both form and function. They take fewer strokes to write than all but the simplest kanji, and instead of representing concepts, hiragana are used for writing phonetically. Because of this, any Japanese word that can be written in kanji can also be written in hiragana.

What is the hardest Japanese writing system?

The Most Difficult Japanese Kanji on Record: たいと(Taito) たいと(taito) is the most difficult Japanese Kanji on the record with a total of 84 strokes. It is formed by combining 3 雲 (くもkumo) with 3 龍 (りゅうRyuu). 雲means cloud and 龍 means dragon in English. たいと is said to be a type of Japanese surname.

Is it OK to only use hiragana?

So writing using only hiragana is both valid and understandable, with the caveat that in many cases doing so will make your writing very awkward reading, and can introduce ambiguity into your writing, for example in the case of homophones (words that share the same pronunciation but generally different kanji).

Why do Japan still use kanji?

Because it makes written communication easier for Japanese people. Sure, it’s difficult for foreigners to learn, and Japanese kids also need to make an effort. But as has been mentioned, Japanese has many homonyms, and kanji helps to distinguish meaning clearly and efficiently.