One of the scariest moments in my life was when I read a text on my phone which started "Mum, I really don't want you to worry but ...." Talk about your blood running cold! Those are words you obviously do not want to read or hear. My daughter had been injured at work, had a BIG, deep cut on her arm and was getting someone to text for her from hospital. I was at work, could not get away for ages (social care, no-one to cover my shift). Later, seeing the wound, stitched by then, was bad enough but when I saw the photos that had been taken of the injury before it had been stitched, I nearly vomited.
As a parent/gran, I would far rather be told about any problems as they arose/developed, than suddenly be hit with something devastating.