[majewsky]

I don't think that's the entire picture. I live near a part of East Germany that has a minority language community, the Sorbs. Unlike the language communities that you seem to be thinking off, the Sorbian language is actively supported by the government. Protection of Sorbian language and culture is enshrined in the state constitution. All the street signs are bilingual. Sorbian is being taught at school to everyone who wants to learn it.

Yet I have never seen an application that had a Sorbian translation, for one simple reason: Every Sorb also speaks German, so there is no financial incentive to invest in a Sorbian translation. The only things with Sorbian translations are those produced in the local area, e.g. the websites of local governments or local businesses.