What is most likely the reason that spanish speaking students in Costa Rica, Mexico, and Argentina all learn a second language in school?

Question

Spanish is a common language
Spanish is not understood by many people
It is important to be able to communicate in more than one language
English provides more clarity than does spanish

Answer 1

The most likely reason that Spanish-speaking students in Costa Rica, Mexico, and Argentina all learn a second language in school is "It is important to be able to communicate in more than one language."

Learning a second language, often English, is seen as an important skill for global communication, career opportunities, and cultural exchange.