The kid's phone was set up against the parent's account and the stored payment methods were applied. Or the kid was borrowing the parent's phone. Kids apps pul

The kid's phone was set up against the parent's account and the stored payment methods were applied. Or the kid was borrowing the parent's phone. Kids apps pull/pulled all sorts of tricks to prevent people from understanding the modal purchase confirmation dialog (eg https://www.mactrast.com/2019/04/apple-adds-an-extra-confirmation-prompt-to-in-app-subscription-purchases/ https://www.mactrast.com/2019/04/apple-adds-an-extra-confirm... )