Earlier quoted context omitted.
This is definitely a big factor. When you look at a Japanese computer keyboard [1] you might see lots of Japanese characters on the keys. Almost nobody actually uses these to type. Instead, if you want a か(ka) character then you type k,a on the familiar qwerty keys. These phonetic characters then get converted into the more complex Chinese-origin characters as you go along, allowing you to disambiguate homophones. Th…
> Cast your mind back to when you first encountered a computer keyboard. I remember hunting for seconds to find letters in this unfamiliar arrangement. How early did you learn to type? As an American born in 1980, I learned in first grade, and I don't remember it being a struggle. So maybe it's really important to learn early. FWIW, I'm visually impaired, so looking at the keyboard wasn't a practical option.
So while it may have been a struggle for me back then, it was for an entirely different reason. I too don't remember it, though.