Final answer:
Bilingualism can have a negative impact on a country in terms of social divisions, challenges in education, and concerns over assimilation.
Step-by-step explanation:
Bilingualism can have a negative impact on a country in several ways. Firstly, it can create divisions within society if language barriers prevent effective communication and understanding between different language groups. This can lead to social and cultural tensions. Secondly, bilingualism may pose challenges for the education system, as it adds complexity to the curriculum and potentially increases costs. Lastly, bilingualism may also lead to concerns over the assimilation of immigrants into the dominant culture, as it may be perceived as a hindrance to learning the official language of the country.