iPhone X users can’t use Face ID to approve family purchases

iPhone X owners have discovered that they can’t use Face ID to approve family purchases, pointing out on Apple’s forums that they can’t figure out how to activate the facial recognition feature to requests, and have to enter their password manually.Ask to Buy is an iOS feature that allows parents to control what their children are buying with their phone. It’s useful, given that children have been known to rack up hundreds of dollars of purchases by mistake.
Ars Technica