How is this supposed to help anyone? That anglophone guess isn't going to be close to correct -- in the general case, it's unlikely to even be recognizable.
Ideally people would use Shavian[1] or some other system that kinda matches 1:1 with the language.
> No trouble with physical keyboards
I've seen comments on HN before about how certain characters used for programming aren't on keyboards with European layouts, supposedly creating a barrier for beginner programmers. In contrast, somebody using a keyboard for one of the CJK languages only needs to press shift to type all the characters in Basic Latin because the physical layouts are the same.
> lot of older computer technology predates modern unicode and nobody seems to be in a rush to replace it.
There are probably way more computers that only support Shift JIS than computers that only use ASCII. I heard that apparently lack of support for Unicode is still a problem in certain Japanese offices.
I think the most dangerous position to be in is when your writing system is similar to but not exactly the same as English, in which case people begin to adopt a "close enough" attitude and accept the status quo, choosing instead to change their orthography in counterproductive ways to fit ephemeral technical requirements.
The keyboards you buy in China (the C in CJK) are the same ones you'd buy in the US. They don't have their own.
This makes sense, since character input is done in software; there is no way to map physical keys to the much much larger inventory of characters.
[0] https://commons.wikimedia.org/wiki/File:Standard_Taiwanese_K...
