Even if the price is zero, you're spending 3/4/5/whatever years not bringing in money. You could, by way of example, be helping in your dad's auto-repair busine

Even if the price is zero, you're spending 3/4/5/whatever years not bringing in money. You could, by way of example, be helping in your dad's auto-repair business and learning that trade. That's the "opportunity cost" I wrote about. No argument that their system is better in some ways, but I think it has some defects too.