Monolingualism encourages insularity, a restricted worldview in which the only knowledge available to one is from one linguistic source. 
Kuzungumza lugha moja kunasababisha kuwa na mtazamo finyu, kuyatazama mambo kwa uelewa mdogo kwa sababu ya ukweli kwamba maarifa yote ayanayopatikana yanakuwa kwenye lugha moja tu.