Well I hope everything works out. Lucky me, I guess, not to be put in this situation. At 14 my DD went to work and had to buy ALL her own stuff, when her stepdad left. My job barely covered rent, utilities and car insurance. Food even sometimes took a back seat. She didn't even get her senior year book because neither of us could afford it.
I wish I could have let her be a teenager for a bit longer. In this economy making her realize its not easy isn't a bad idea. Tie it into doing something for charity. Its a good lesson.