You cant live totally without money, some things just aren't possible with barter (dentists etc). However it is possible to manage on very little. Where I live most people are on minimum wage, or just over, but we do have a wide range of skills, as many carpenters, builders, mechanics etc, now work in warehouses, as cleaners etc, as there are few decent jobs remaining and manufacturing is now virtually all abroad.
So swaps are often made. I may do some gardening, or repair a machine, in exchange for some building, or decorating (which I hate). We will also work together on larger projects, saving a fortune in the process. So it is possible to a degree, to do what the chap intends. But it would be easier in summer, when more food is available.
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