I think sometimes families feel like they are responsible for their child's/ relative mental health and welfare that goes beyond basic care for the child/support for the adult. Its almost like acknowledging your issues somehow makes them feel blamed as if they purposefully ignored something. Even worse is when they DID purposely ignore something and they are now reckoning with that guilt. Also, some families like to think that their issues are SO much worse than yours and they are SO unique and that no one could possibly know how awful they feel. None of that is fair of course....