They also denote etymology differently. I learned (3 years of high school japanese, got to like a 1st graders level if that but i did learn a lot) that hiragana is used for words that were originally Japanese, while katakana is used for words adopted from other languages. That’s why you see English translated into katakana, not hiragana. Iirc, kanji might’ve also come before wither hiragana or katakana, and unlike Chinese there is a way to understand kanji based off of its original components (there’s a name for them I can’t remember)
They also denote etymology differently. I learned (3 years of high school japanese, got to like a 1st graders level if that but i did learn a lot) that hiragana is used for words that were originally Japanese, while katakana is used for words adopted from other languages. That’s why you see English translated into katakana, not hiragana. Iirc, kanji might’ve also come before wither hiragana or katakana, and unlike Chinese there is a way to understand kanji based off of its original components (there’s a name for them I can’t remember)