I will complete about the advantages and disadvantages of each fiat money and crypto money. Crypto money is more decentralized, free of charge transfer and storage, privacy is guaranteed, free in transactions, no risk of billing, durable, and portable. Crypto money is often used as a fraudulent transaction. For easy use, right now, I'm easier to use fiat money because not all countries and stores accept payments with crypto money. Fiat money is also more stable than crypto money.