Sure, but realistically that's not as "expensive" as it would seem. It's not like you could replace it with just about anything (it'd have to be a class that co

Sure, but realistically that's not as "expensive" as it would seem. It's not like you could replace it with just about anything (it'd have to be a class that could realistically be taught instead, requiring a realistic syllabus, a sufficient availability of capable teachers and sufficient demand). And if you want to be properly realistic, you'd have to limit the alternatives to what would have been available alternatives in school if it was an elective. And if considering alternatives outside school, you also have to factor in the overhead (whereas in school you're already paying that anyway). Besides, it's naive to treat cost as simply a measure of time. In some cases time spent in school is much more intense than outside of it. In other cases it's the opposite.