USDC (USD Coin) is popular for several reasons, including its stability as a stablecoin pegged to the US dollar, its transparency with regular audits to verify its backing, its wide acceptance across various cryptocurrency exchanges and platforms, and its regulatory compliance which provides users with a sense of security and trust. Additionally, USDC is often used for trading, lending, and other decentralized finance (DeFi) activities due to its liquidity and reliability.
