Apple Touch ID Authentication in iOS 8

Now that Apple Touch ID Authentication is available to developers in iOS 8 (see here), I imagine a use case where we could use our phone’s fingerprint sensor to authenticate a user before executing certain actions, such as unlocking a door or deactivating an alarm system. Another idea would be to limit certain functions so children cannot execute activities, but a parent can. Does anyone have other scenarios that would benefit from this type of user verification?

This would be great. My son is about to get my old iPhone 5, and id like him to be able to control lights and things. However, I would like to avoid giving him access to disable the alarm, door sensors, or locks. I was thinking about this the other day. Touch ID auth would be awesome…but my wife has an Android device… so i could see that becoming an issue.