If, by leveraging Starbucks convenience, he can save/make more than $100/mo then it is minimalism. High mobility comes to mind; a traveling consultant might not be home enough to warrant owning a coffeemaker, and [in]convenience of a portable set (AeroPress + Hairo MiniMill) may be problematic.
While minimalism and survivalism have a great deal in common, they are not equals. Try living in a city with what a 3rd worlder does and it's a punishable offense (possession/use of large knife, firestarter, chickens, etc.).
While minimalism and survivalism have a great deal in common, they are not equals. Try living in a city with what a 3rd worlder does and it's a punishable offense (possession/use of large knife, firestarter, chickens, etc.).