Offline storage of private keys is one thing. If you want offramp crypto for FIAT you send it too a centrale exchange which has a KYC process (so not anonymous)

Offline storage of private keys is one thing. If you want offramp crypto for FIAT you send it too a centrale exchange which has a KYC process (so not anonymous) from the wallet. The mantra "not your keys, not your coins" is related to this.