Nation-state Adoption

Lenka reads that another country has adopted Bitcoin. She pictures cafés where customers routinely pay from their phones, but the article is actually about a government BTC reserve. Both belong to the topic, yet each needs its own evidence. A government may hold bitcoin while residents still pay cash. Elsewhere, people use it without a special government initiative. Mining, legal recognition and merchant acceptance also mean different things. The US reserve order establishes a government policy, not the share of citizens who pay for purchases with bitcoin. [1] [3]

Lenka first checks how far the plan has progressed. A political speech is not an enacted law, and an adopted rule may not yet be in force or implemented. For a BTC reserve, an announcement differs from a documented purchase; moving coins already owned between public agencies is not a new purchase either. Similarly, launching an app does not establish that people pay through it. A date, an identifiable decision and evidence of implementation let readers follow real progress instead of counting announcements. [1]

Rules can change even in a country that has already adopted Bitcoin. In March 2025, the International Monetary Fund (IMF) described changes in El Salvador: bitcoin acceptance was to be voluntary and taxes payable only in US dollars, or USD. This document helps explain that change, but it is not the complete current law. Nor does a requirement for merchants to accept bitcoin tell us how many customers want to pay with it. Legal permission, legal obligation and actual demand are different things, each of which matters when assessing a country. [2]

Research on El Salvador’s Chivo app shows how to move from government plans to people’s behaviour. Economists Fernando E. Alvarez, David Argente and Diana Van Patten combined face-to-face interviews with bitcoin ledger data in NBER 29968, a working paper published by the US National Bureau of Economic Research. They distinguished downloads, use of the initial incentive and subsequent use, and examined privacy concerns. Chivo supported both bitcoin and dollars, so using the app did not automatically mean using bitcoin. These findings concern the population and period studied; they are not today’s adoption score for every country. [3]

Lenka tries a hypothetical survey: out of 1,000 respondents, 600 know the service, 300 have downloaded it and 80 used it in the past 30 days. The last group is 8% of all respondents but about 26.7% of downloaders. Both percentages are correct; they answer different questions. This is our invented example, not real national data. Even a correctly calculated survey percentage cannot be extended to the whole country without understanding how respondents were selected. Surveying only app users would leave out people who do not have it. [3]

Bitcoin’s ledger is public, but it does not provide a list of its users. Lenka’s wallet can receive BTC at many addresses. A payment can also return change: the portion of the amount being spent that is not needed for the payment or fee goes back to an address in the same wallet, rather than to another customer. The opposite problem arises with a service that holds funds for clients. A transfer between its users may only update internal balances, with no separate on-chain transaction recorded in Bitcoin’s ledger. Address and transfer counts therefore do not, by themselves, reveal how many citizens, purchases or new users are involved. [4] [5]

Once Lenka knows how many people use a service, the question of cost remains. Someone pays for incentives, running the app and custody; changes in the price of publicly held BTC can also affect the state. It matters who bears a loss. In 2025, the IMF explicitly discussed limiting public costs and risks in El Salvador. Attracting more users may achieve a project’s goal, but it does not by itself establish a net fiscal benefit: that benefits to public finances exceeded the costs. That calls for a separate assessment. [2]

For the next headline, Lenka looks for a specific answer: what was measured, among whom and when? An “active user” might be someone who logged in or someone who actually paid; those are different measures. Comparisons over time need a consistent definition and period, a clear account of sample selection, and a distinction between BTC payments and other activity in the same app. Growth after a policy begins does not itself prove that the policy caused it. Prices, access to services and other circumstances may have changed too. Clear definitions help us recognise both progress and its limits without assuming an entire country now uses Bitcoin. [3]