One can easily put them self in a position to want for nothing, simply by choosing to.
Once a person gets past acquiring the necessities in life (food, water, shelter, transportation) the list of things they want should be pretty small. The problem people have is that we focus on the material possessions we want in life (or think we want) without considering the end game of why we want them. Instead, we should be asking ourselves what we want to get out of our life. Once we know the answer to that question, then we can decide what resources and tools we need to facilitate the life we want. In the end we will find that this list of tools and resources is a lot shorter than the list of possessions we thought we wanted when we were focused on our most immediate worldly desires rather than our long-term goals.