My friends are learning Chinese.
Koreans are going to cram schools to learn Chinese.
They are clearly going to be the dominant super power this century and China has the fastest growing economy and largest population to design for not to mention the technical and manufacturing know-how and soon, will lead the world in technology infrastructure. It’s all being newly built so they can skip thinking about legacy infrastrusture and use the latest and greatest.
Japanese and Korean borrow a lot from the ancient Chinese cultures. Most things Westerners think are Japanese actually have their roots in China. In fact most of Asia is influenced by China in their history, language,and culture.
I don’t see much point in learning Japanese for ID. Most Japanese (katakana) these days are sounds that are phonetic English. Kanji is actually Chinese (Hanzi). Han characters.