What are examples of real world cryptocurrency use cases?

Cryptocurrency has several practical real-world applications beyond speculation. El Salvador uses Bitcoin as legal tender for everyday purchases and remittances. Stablecoins like USDC enable fast, low-cost international money transfers compared to traditional banking. DeFi platforms allow unbanked populations to access loans and savings accounts without traditional banks. NFTs authenticate digital art ownership and ownership rights. Supply chain tracking uses blockchain to verify product authenticity from manufacturer to consumer. Some hospitals and clinics accept crypto payments for medical services. Charities use blockchain for transparent donation tracking. Cryptocurrency also provides financial access in countries with unstable currencies or limited banking infrastructure.