However, many of them are incredibly close to their family or friends- after all, what's the point of life if you don't have anything you love in yours? I was a bit fortunate that my family had effectively written me off as a failure, which left me little guilt to feel when I left.
Then, my entire life turned around. In the span of 14 months, I go from unemployed, to auto parts delivery, to paid-for-shit web developer, to absolutely amazing webdev/product development job. All without college, and thusly, with no debt.
I got stupendously lucky, once the bad luck ran out. But I don't imagine as many had the pure hopelessness that I had before, where you have no moral support from friends/family, and no hope for work, which gives you no reason to not leave.