Over the years, quite a few women have said to me, “MY child won’t do X” or “OUR relationship is different, we’re very close!” only to be (predictably) proved wrong as their children grew up. In another conversation with a woman I know well, the "only a mother ..." and "only a parent ..." comment was uttered in this context repeatedly, blocking any possibility of a real discussion and the consideration of alternate views. It was clear that my role in the discussion was intended to be one of support, nodding and sighing, and validating the parent's decision. Whilst I couldn't bring myself to put my heart into this, I also couldn't put the child's case, as I wanted to do. My restraint was impressive (if I do say so myself)!
Later I said to my husband,
"Only a parent can be so self-righteous that they are blinded to the truth."