When I think about my working place which is a language school, I see that some of my student consider the language school as a gym center. You may laugh at my statement, but it is true. Many people in different parts of the world pay money for the membership that they don't use in gym centers, it is exactly same in language schools.

Schools are indeed similar to gym centers. You pay the money up front, the benefits of the service is based on the work and effort from the students.