Will Work for Food and Lodging
I love this idea. I live in Germany, and (as pointed out in the text) carpenters can still be seen from time to time during their journeyman years (which is called "Wanderschaft" or "Walz" in German). Slightly OT but here's a picture of what it looks like when they walk across the country [1]
I always found this concept deeply fascinating because these people get a chance to see many things from different perspectives simply because they move out of their local village, which many people never do.The application of this concept on modern trades like software development is certainly very interesting. I'm tempted to think that the biggest gain it might have is that one (as the journeyman) can get quick insights into the deep differences between workflows and company culture in the various companies one approaches. I mean, we all know how different the current employer compared to the previous employer can be, now imagine having such a switch every  1-2 weeks.[1] http://www.berufsausbildung-bau.de/images/Wandergesellen.jpg