We are developing an application that utilizes the Screen Time API. As outlined in Apple's documentation on family controls (https://developer.apple.com/documentation/familycontrols/), we obtain authorization using 'AuthorizationCenter.shared.requestAuthorization(for: .child)'. As mentioned in the documentation, once the app is authorized for family controls, users should not be able to delete the app without providing the parent iCloud credentials. In some unknown cases, the prompt to enter the parent iCloud credentials when deleting the app is not appearing, preventing users from uninstalling the app.
Note: The device had an active internet connection when the issue occurred.
Device details: iPad 9, iPadOS 15.6.1