You should remove "spend to explore the world" in your Priority list and add it instead on your Luxury-Based category because I think it wasn't really necessary especially if one is poor however I think there are people who quit their careers only to travel the world because they think they are only wasting their time working and can't enjoy life that way.

Maybe these guys already save up a lot of money before they do it and then they only find ways to earn or to get a food in each of the place they end up. This only shows that whatever we do, money is still one of the most important things. The next would be the skills and knowledge.