That is what I think many good intentioned people do when they install computer systems without locally relevant content – they deploy the equivalent of a computer lab filled with the Star Trek cannon in Klingon.
Think about it. If your users are not literate in English, if they cannot read and write in the Internet’s main language, what they see on screen makes as much sense as Klingon does to you or I.
And before you think users will find or create content in their own language, let us look at the article per language count on Wikipedia. If we add in the number of people who know each language, you can quickly see that many African languages are grossly under-represented online.
Now the Wikipedia isn’t the entire Internet, but it is a good proxy for user-generated content online. And if your users speak Kiswahili, Luganda, Chichewa, or Xhosa, giving them a computer lab with English-only content is as useful as Klingon.