It’s also the reason why Arabic text can be output on the screen, Ruby characters can be used and screen mirroring is usable for UIs that need RTL layouts. You really should look it up before criticising it.
It deals with things as small and as important as date formats, number seperators, punctuation marks, monetary formats, support for different calendar systems, capitalisation rules… you name it, it encompasses it.
It’s a genuine discipline. It’s used extensively in Windows, Mozilla and LibreOffice.
https://en.wikipedia.org/wiki/Internationalization_and_local...
