This is true for the minorities in Eritrea. The indigenous languages in Eritrea are symbols of the Eritrean nationalism. In order to survive they must be used in some domains in Eritrea. The various ethnicities in Eritrea have equally sacrificed for their self -determination and for the liberation of Eritrea. The fate of these languages have consequences, proponents of the Arabic and Tigrinya as official languages, should avoid raising cultural problems in Eritrea, I mean they should differentiate between the rights of the indigenous languages and the status of the official languages in Eritrea.
Indigenous languages have also cultural significance.
Language policy affects social and political access to careers and public goods. To-day most Eritreans who cannot tigrinya are alienated from the Government. They don't have equal career benefits and opportunities. Because they cannot the language. The current language policy in Eritrea is implicitly or explicitly assimilative.