It's well said, these Bitcoin wallets are good for storing your Bitcoin for the long term but you cant use it to convert through your local currency (fiat) on that wallets. Just have quick research on google and find a LocalBitcoins wallet, or any trusted custodial wallet whereas you are not holding private key but it is always had fast transactions when you are converting your Bitcoin to fiat. But it is not recommended to store long term your Bitcoin in the custodial wallet.

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