Wood burning is like gardening, hunting, fishing, woodworking, etc. In the modern world, it's more of a hobby than a means to and end. Lots of people on here will try to claim otherwise but most are actually just rationalizing/romanticizing. Most of the folks who "have" to heat with wood have created the conditions to force that requirement through choice. Wood burning is largely a "luxury" in the modern home, not usually a necessity. Having a wood burner in a home as an alternate heat source is good preparation for power outages, but burning every day in those homes? Most of us don't need to do this, we choose to do this because fire is nice.
I bring this up, because, some people go down the rabbit hole of wood burning as a means to "save money." Ultimately, it's unlikely that you will actually save much money through wood burning compared to "normal/modern" heating methods, and more than likely the effort put into it, if put into a career, would generate far more money than the wood burning would save.
The point I'm getting at.. is that, yes, you won't find many "poor" people in civilized parts of the western world burning wood as a serious endeavor unless that is their hobby that they are willing to funnel the majority of their disposable income into it. Similarly, look at hunters, fishers, woodworkers, gardeners.... With some exceptions, this usually takes the form of thousands of dollars thrown at a process that generates hundreds of dollars worth of produce/meat/widgets.