I believe the reason we need to coerce people into paying is because economically if you don&#x27;t let people volunteer to pay, it just doesn&#x27;t work. Excuse me if I don&#x27;t have the sources for this as it was my Econ PhD friend who explained it to me.<p>I wonder if the argument against it is something like this: imagine for every person, they have some amount they are willing to contribute to said scheme. However, unless the total amount needed to fund such a project is small, if you don&#x27;t force everyone to contribute then the cost will be significantly higher per person. Then, because it&#x27;s higher than what some people want to pay, they choose not to pay although they would have otherwise. After that happens, the price increases more, and this effect continues.