Parents care about themselves, not their children's feelings. Children are basically cigars for mommy and daddy who use them for the sensations they provide. These pleasures are created by the parents' instincts. Who knows why parents say the things that they do.

It is probably a combination of social norms and genetic drives to nurture their own offspring's survival, no matter the cost. My point is that we cannot ask parents to stop in any reasonable way. They are literally Earth's cancer cells stewing in their retarded, fictional jargon. We will likely never convince such creatures to change. We have to act upon them!