My passcode access buttons are greyed out, and I cannot change anything. No clue why!

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My slide to reply from lock screen is not giving me a keyboard, so I went into settings, then touch ID and passcode to try to turn things on and off. However, all of the buttons under allow access when locked are dimmed, and I can't change anything. No clue if this has always been this way, but I don't understand why I can't change them.