Javier's customer paid using USDC. What makes USDC different from Bitcoin for a business like Javier's?

USDC is a stablecoin: one USDC equals one US dollar. Bitcoin’s price shifts constantly. For a food truck selling a twelve-dollar lunch, that matters. If the price of Bitcoin moves between when the customer pays and when the processor settles, the dollar amount could differ from what was expected. USDC removes that problem because there is nothing to move. One dollar in, one dollar out.