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What is crypto used for?

Beginner · Foundations · about 5 min read

People use crypto to send money, to buy and sell as an investment, to use apps, and to own digital items, but it has limits that cash and cards do not.

What people use it for

• Sending money. Ethereum’s guide says ETH can be sent to anyone, anywhere in the world, in seconds. Stablecoins are a common choice for payments.
• Finance without a bank. Some apps offer lending and trading to anyone with a wallet.
• Digital items. People collect and trade NFTs, art and tokens that give a vote in a group.
• Apps and sign-in. Some apps let you sign in with a wallet instead of an email and password.
• Business and aid. Companies use blockchains for payments, loyalty points and tickets, and the Ethereum guide cites aid sent to people in Ukraine during the war.
• Investment. The US Federal Trade Commission lists investing, quick payments and avoiding some bank fees among the reasons people use crypto.

Keep in mind

• Crypto is not legal tender in Trinidad and Tobago. See Is crypto legal in Trinidad and Tobago?
• The FTC says crypto payments typically cannot be reversed, and that cards come with legal protections that crypto payments usually lack.
• The FTC also says only scammers demand payment in cryptocurrency or guarantee profits.
• General information, not financial advice.

The uses in practice

Ethereum's own guide describes stablecoin payments that settle in seconds for a few cents, and it points to companies that have built on that idea, including PayPal's dollar stablecoin and a major online shop platform that lets customers spend stablecoins. It also cites the Ukrainian government sending wartime funds directly to citizens and aid groups through smart contracts. These are real uses, but they are not the same as everyday life in Trinidad and Tobago, where most shops, bills and wages are in TT dollars.

Sending money home: what it really costs

Remittances, money sent by people working abroad to family, are one of the most talked-about uses. The World Bank tracks what it costs to send $200 worldwide, and its latest figures put the global average at roughly 6 percent of the amount sent. Banks are usually the most expensive way and mobile money among the cheapest. In 2023, remittances to Latin America and the Caribbean reached about $156 billion, so small differences in cost matter to a lot of families.

Sending the same money by crypto is not free either. A crypto route usually has these steps and costs:

• Buying: the sender pays a fee or a spread to turn money into a stablecoin.
• Sending: a network fee, which may be small.
• Cashing out: the receiver needs a way to turn the coin into TT dollars, which may cost another fee and an exchange-rate margin.
• Risk: a wrong address or network can lose the money, and nobody can reverse it.

Trinidad and Tobago law adds a legal note. Until 31 December 2026, virtual asset activity carried on as a business in or from the country is temporarily prohibited unless the TTSEC has approved it. The TTSEC says this does not cover individuals using virtual assets for personal transactions. Ask any service you use to show its approval.

Where crypto is a poor fit

• Rent, school fees and groceries. A price that can move by double digits in a week makes it hard to budget.
• Anything you may need to dispute. The FTC notes that cards come with legal protections crypto payments usually lack.
• Local shops. Crypto is not legal tender in Trinidad and Tobago, and few businesses accept it.

Common mistakes

• Counting the sending fee but forgetting the buying spread and the cash-out margin.
• Using an unregulated "remittance" app found through an advert.
• Assuming the receiver can easily cash out to TT dollars.
• Sending a first large amount before testing a small one.
• Treating a price rise as a reason to send everything through crypto.

Try it yourself

1. Open the World Bank's Remittance Prices Worldwide site and look up the cost of sending $200 on one route you know.
2. Write a list of every cost in a crypto route for the same $200: buying, network fee, cash-out, exchange-rate margin.
3. Compare the totals as a percentage of $200, and note which numbers you could not find.

Key terms

Payment, stablecoin, dapp, NFT, reversible.

Sources and credits

Uses of Ethereum: ethereum.org, What is Ethereum. Remittance costs: World Bank, Remittance Prices Worldwide. Regional flows: Jamaica Observer, reporting the World Bank. Crypto payment protections: US Federal Trade Commission. Trinidad and Tobago law: TTSEC fact sheet on the 2025 Act. General information, not financial advice.

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