Because if I were going to help someone out it would be someone in my own country first, and I pay taxes so I don't do charity.
That's by-the-by though, as giving $25 to charity still isn't a pragmatic use of the money since it isn't a more practical use of $25 than buying the steed in the case a person has $25 to spend on any extraneous consumption and I would argue that, when taking into account utility of enjoyment and the properties of transativity, the $25 being spent on the steed is a much more practical use of it to me than giving it to some charity to be wasted on "administrative fees"
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