There are several ways to exchange USDC ERC20 for PayPal in EUR. One option is to use cryptocurrency exchanges, where you can first sell USDC, then withdraw the funds to a bank account, and only after that transfer them to PayPal. However, such an operation often requires complex KYC verification, takes more time, and is accompanied by additional fees. A more convenient option is to use specialized services. Through such platforms, you can exchange USDC directly for PayPal EUR. The user sends USDC from their wallet, after which a transaction occurs on the ERC20 network, and the service converts the asset and transfers the money to PayPal.