Go to Settings > Touch ID & Passcode. On devices without Touch ID, go to Settings > Passcode: Tap Turn Passcode On. Enter a six-digit passcode. Or tap Passcode Options to switch to a four-digit numeric code, a custom numeric code, or a custom alphanumeric code. Enter your passcode again to confirm it and activate it.
Wales uses the same currency as the rest of the United Kingdom, the British Pound Sterling.
The UK currency is the pound sterling (Â£), with 100 pence (p) to a pound. 'Quid' is a slang term for pound. Several Scottish banks issue their own bank notes which can be used in the north of England and in Northern Ireland, but may be refused elsewhere. UK banks will accept them but foreign banks generally do not.