Bug#859780: debian-edu: remove education-lang-??-desktop-kde metapackages for Buster
> The question is, do we want a Debian Edu system to support all
> languages, or at least the common ones? Or do we want to limit the
> language support and make other languages post-DI installable?
The choice we did a long time ago, was to install the "big" languages by
default (ie English, French, German, possibly Spanish) as these are
foreign languages in many schools, and install the languages used less
as foreign language (like Norwegian, Danish, Chinese) only when
installing using that language.