Google Wallet is introducing tap-to-pay for children on Android, allowing them to make in-store purchases. This feature will be available in the U.S., U.K., Australia, Spain, and Poland in the coming weeks. Parental approval is required for kids to add a card, and parents can monitor spending or remove the card at any time. Children can unlock the app using a fingerprint, face scan, PIN, or passcode, and the app can also store gift cards and event tickets. The feature is limited to in-store transactions and does not allow online shopping.