You can use Moneygram in the Decaf Wallet to withdraw your USDC into CASH. This is available in 184 countries and more than 350k locations. Here is the list of supported countries.
Make sure you have USDC on Stellar to be able to use this feature. You can off-ramp up to 2500 USDC daily.
In your wallet, select home screen > withdraw > cash and follow the steps to complete the cash withdraw transaction.
Once you have a reference number from MoneyGram, go to the nearest location and pick up your cash.