Why Are Stablecoins Inherently Fungible Assets?
Stablecoins are designed to maintain a stable value, typically pegged 1:1 to a fiat currency like the US Dollar. Since the primary goal is to function as a reliable medium of exchange, it is essential that every unit is identical and interchangeable ▴ meaning any one USDC is treated the same as any other USDC.
This characteristic makes them inherently fungible and thus ideal for the ERC-20 standard.