Hmm, I think everyone needs to really settle down on this and consider each individuals situation. It's sometimes not as easy as just getting up and trying to do something about it since it's going to highly depend on the person's situation and whom they are reliant on. Although I think it's very important to at least try the best you can to move forward, you could be in a situation that doesn't allow you to, or constantly forces you to stop part way through.
I, personally, have tried to get my life in order, and still continue to try. However, it just has never turned out well for me under any circumstance all due to past mistakes I have made or my family has made. When you are reliant on a family that just doesn't care or can't help ... it can be pretty difficult to do anything about the situation. In my case, my family really made it hard on me to move forward because I typically had no place to go more often than not and only have had small time periods before I was looking for another place to go.
The other thing I need to point out is that finishing college doesn't mean success. There are plenty of people who come out of college who still are unable to get a job. With the amount it costs, it can put you in a worse position than where you started because now you are in debt. Also, you can count out Grants and Scholarships as those are going to be something you can't count on, you might be eligible or you might not. To be safe, you should just assume you are not eligible and you would have to face the full cost.
Now there are other options though, Job Corps is a place you can go to get a trade degree absolutely free but it's a pretty strict school. I went and graduated in Telecommunications. They are also capable of getting you a drivers license (if you are diligent enough to sign up for it), they teach you and even pay for everything. They also feed you, cloth you, and even pay you. If you are in the top students, after graduating they may even send you to college, though it's only for a select few. Out of 1,000s of students who had come and gone, the group of college students myself included, was only about 8 - 10 students. I did well, but I failed to get my drivers license while I was there because I was too focused on all other work. Stupid of me, because telecommunications jobs essentially requires a license.
Edit: Now of course, I do think getting a job is important, and I don't see any good reason someone shouldn't be working if they are capable.