Because fundamentally, African countries are a creation of Europe. They have European languages because they were founded by Europeans. read more
And so the state forces many indigenous people to become members of a foreign community, where they are a minority and their language is scorned, as in the case of boarding schools. Whereas at home, mastering the native language is an important part of functioning in the community and earning prestige, and thus something of value, at school it becomes a black mark and a detriment. read more