Why does the opportunity cost of your college education include money you could have earned working instead of going to college?

Question

Quizplus · Accepted Answer

The opportunity cost of a college education is the value of the best alternative use of your time and resources. In this case, the best alternative use of your time is working, as it provides an immediate income instead of investing time and money into education. Therefore, the opportunity cost includes the money you could have earned while working instead of going to college.

Why Does the Opportunity Cost of Your College Education Include