I remember almost 25 years ago, when I was teaching English in Japan, one of my adult students couldn't remember how to write the kanji (i.e. Chinese characters) for "police".

Text input is now universally phonetic, and young people have a lot of trouble remembering how to write words.

Add to this the enormous (and increasing) use of English words, written either in katakana or actually in Roman letters, and it's plain that Japan is further down the road of losing its writing identity than China is.