In the Randroid Universe, sure, every adult is logical, educated in accounting & finance, has a grasp of the market economy, is not socially nor financially desperate, and possesses enough self-restraint to not ever make such a blunder of a decision and accept a loan that is too big for them to ever pay off.
But here in the real world, we have extensive laws and regulations to stop just that from happening. Why? Because if those laws didn't exist, the banks would just steal everything that isn't nailed down, and turn everyone into a nation of debtors. This isn't the first time it happened in history either—I recommend reading some history about the economics behind the expansion of the rail roads and their collusion with banks in America just around the time of the closing of the Western frontier.
Bullshit. Strong words to follow.
Of course, student loans already subvert those protections, and really, compared to bankruptcy, I don't think the rest of the 'protect (dumb|trusting) people from (predatory banks|themselves)' laws are worth jack.