>>96157563>added spaces and punctuationThere's no need, that's what particles are for
>and maybe add those arrows for pitch, could they get away with just hiragana and katakanaNope, there are too many words that are pronounced the same way, and you can only differentiate them through context in a conversation or by seeing the kanji directly. Fun fact: some stories for very young children use only hiragana, and ironically, some adults struggle to read them because they rely on kanji to distinguish the actual meaning of the words
Japanese is a mess and you can't really "fix it"