Why do people who study in Canada take IELTS?

Does the questioner want to ask "Why do mothers studying in Canada take the IELTS test?" Study needs, immigration requirements.

1. Learning needs: When accompanying your mother to participate in language training or further education courses in Canada, many schools require proof of English proficiency, among which IELTS test scores are one of the accepted proofs.

2. Immigration requirements: If the accompanying mother applies for family reunification immigration or other types of immigration in Canada, she needs to provide proof of English language proficiency. The Canadian Immigration Department uses IELTS as a way to assess English proficiency.