Yes, it’s a parental responsibility.
And as a parent I can assure you that there have been times that I have addressed things well before Mass, and yet had them come up ‘during Mass’. IOW, that girl could have very well known that she was not supposed to go from her father’s telling her earlier, but (perhaps on autopilot, and perhaps deliberately, we don’t know) got up to go, and had to be reminded. That upset look could have been the natural ‘teenage’ upset at doing something wrong which she hadn’t meant to do; it could also have been the upset look of somebody getting thwarted from getting her own way. We don’t know.