Ask what action triggered the request
Have the child show you the step before the prompt, without taking or uploading a new picture just to test it. A drawing app might offer a photo import feature, while a communication app might be starting a video call. Those are different decisions even though both mention the camera. Ask whether the feature is necessary for the task or merely an optional shortcut. The fact that an app asks for access is not enough information to decide either yes or no.
Check what happens to the image
Look at the feature description and relevant privacy information. Distinguish capturing a picture on the device from sending it to another person or service. If you cannot determine the destination, choose an alternative way to complete the task or wait for a clearer explanation. Avoid photographing people, private documents, or a recognizable home background during troubleshooting. Use a plain object for a harmless test if testing is needed and you have decided the feature is appropriate.
Make the decision easy to revisit
Choose the narrowest available option that meets the agreed need, and test that need without exploring unrelated sharing features. Tell the child what the permission covers and when to ask again. If you decline, show them the alternative rather than leaving the activity mysteriously broken. Later, review the permission through the device’s current settings if the feature is no longer used. Do not assume uninstalling, signing out, and revoking access are interchangeable actions; consult the provider’s instructions for the specific change you intend.