Hey there

It depends on the objectives of IELTS which it fulfills. This exam requires minimum 16 years of age. Objective of qualifying this exam is to is studying or working in a country where English is the major popular language of communication. The major countries which accept this exam scores are United Kingdom Australia New Zealand America and Canada.

For more:

https://www.google.com/url?sa=t&source=web&rct=j&url=https://studyabroad.careers360.com/exams/ielts/amp&ved=2ahUKEwjr9c2B0czzAhVOcCsKHZWACc0QFnoECAkQAQ&usg=AOvVaw2r9DWMSF2tZOZhX5TtrU1v&ampcf=1