Hi, your paragraph about Chinese is the wrong way around. In Classical Chinese only 你 existed. Then due to the attempt to modernise written Chinese in the early 20th century, 妳 was invented. Although it’s fallen out of fashion it is still a valid character.https://chinese.stackexchange.com/questions/33265/when-did-%E5%A6%B3-become-the-second-person-singular-feminine-pronoun