I see it the other way. It would be actually orders of magnitude less effort for the rest of the world to learn one standard system/language than to have every app/product/document adapted to every single language/script/whatever in existence
The percentage of the world population involved in script adaptation and language translation is really quite tiny. Consumers vastly, vastly, vastly outnumber producers.
Not to mention that we have things like automated translation that are "good enough" for many cases as well.
Whereas learning a new language to fluency, for most adults, takes about ten years.
But they don't. That's precisely why the text input handling is so difficult, because it has to solve it for all apps. How many apps have you worked on that has had to create their own text input system from scratch? I think for most developers that's zero.
Like the article said in the end:
>The necessary complexity here is immense, and this post only scratches the very surface of it. If anything, it's a miracle of the simplicity of modern programming that we're able to just slap down a <textarea> on a web page and instantly provide a text input for every internet user around the globe.