I just finished Walden on Wheels and enjoyed it. It was funny and insightful. It is not something I am ready to allow my daughters to read since it has a couple of pretty sexually explicit parts, as they may be ready for that in a few years but not now. However, the part I really think would benefit them is how he looks at his debt. He doesn't think it is normal to have it, especially his student loans, as most other students take them out quite often. He does over-simplify things a bit (generalizes), but he does bring a different point of view. His views are not "normal," but I think they should be.
He also has some spot-on observations and comments about being outdoors, and what we think is and isn't important in this life.
Anyway, I recommend it as a good read.