I get your "willing buyer and seller". I have a BA and MBA in Finance and Business Administration from Vanderbilt and Case Western Reserve Universities, respectively, which included studies in Finance, Accounting, Money and Banking, Economics and Marketing.

To add a more robust context to the subject matter:

Actually, Bitcoin is not a fiat currency, and it is nowhere like the US Dollar.

Governments establish fiat money by declaring it "legal tender," requiring citizens and businesses to use it for transactions and tax payments.

Central banks manage the supply of fiat money, allowing them to control interest rates, influence liquidity, and stabilize economic growth.

Right off the bat, without saying a word about cryptocurrency, one can see the difference.

Now, saying a word or two, you cannot buy most items or pay your taxes in the United States with Bitcoin.

The US Dollar is the official currency of the United States, legal tender for all debts, public and private, and almost universally accepted and converted to other international currencies.

The US dollar (USD) is primarily classified as a fiat currency, a reserve currency, and the dominant international currency in the global financial system. It serves as the official legal tender of the United States and its territories, backed entirely by the full faith and credit of the US government rather than physical commodities like gold. It holds value by government decree rather than intrinsic worth.

Bitcoin is a phantom currency not directly accepted most places. Somewhere beneath the myriads of federal and state laws on the books, it is probably illegal and fraudulent too. Barring that, it does have legal stipulations not applicable to the US Dollar.

Bitcoin is not classified under a single, universal definition. Instead, its classification varies depending on the regulatory agency and the jurisdiction, with different frameworks treating it as a digital commodity, taxable property, or a distinct digital asset class.

The Commodity Futures Trading Commission (CFTC) regulates Bitcoin as a physical-like commodity. Under a landmark joint interpretation framework by the SEC and CFTC, Bitcoin is formally categorized as a digital commodity. Because it relies entirely on decentralized protocol mechanics and supply-demand dynamics rather than the managerial efforts of a core promoter, it is explicitly excluded from being a "digital security".

For federal tax purposes, the Internal Revenue Service (IRS) classifies Bitcoin as property, not currency. This means it is treated similarly to real estate or stocks. Every time you sell, trade, or spend Bitcoin, it triggers a capital gains or loss income tax situation, so it is more like trade in precious metals.

The Financial Crimes Enforcement Network classifies Bitcoin as a convertible virtual currency. This subjects crypto exchanges and custodians to Bank Secrecy Act and anti-money laundering (AML) protocols.

For corporate balance sheets, global bodies like the International Financial Reporting Standards (IFRS) and U.S. GAAP primarily classify Bitcoin as an indefinite-lived intangible asset. In specific circumstances where a business holds it for short-term sale, it can be accounted for as financial inventory.

Under the Markets in Crypto-Assets (MiCA) regulation, the EU avoids traditional terms like "commodity". It classifies Bitcoin as a crypto-asset falling outside the scopes of electronic money tokens (EMTs) or asset-referenced tokens (ARTs). It is legally treated under its own tailored digital governance code.

Voyez-vous la difference? J'en ai terminé. Je n’ai plus de dire.