family-member run-around 

Refers to the common but totally unproductive/destructive practice of a young child's parents and/or two or more older family members successively "delegating" or "passing the buck" from one family member to another when the youngster asks a difficult/uncomfortable question, rather than the initially-queried adult's simply saying, "I don't know" or, "That is not something you need to know just yet --- wait till you're a few years older to ask about that."

Small girl: Daddy, how was I born? Where did I come from?
Father (glancing up from his evening paper): Go ask your mother that question.
Small girl (toddling over to her mother, who is knitting by the fire): Mommy, how was I born? Where did I come from?
Mother (looking up from her knitting, surprised): You know --- that's a really excellent question... why don't you ask your father about that.
Small girl: Well, I already did --- Daddy told me to ask you.
Mother (exasperated): Oh --- well, then, I think maybe your Uncle John could help you answer that.
Small girl (going outside where her uncle is lounging on the porch swing): Uncle John, how was I born? Where did I come from?
Uncle John: Hummmm... lemme guess --- didja ask your parents about that, and they sent you to me?
Small girl: Yes, Uncle John --- Mommy said you'd be just the person to ask.
Uncle John: Ahhhh... givin' ya da ol' family-member run-around, are they?

family-member run-around by QuacksO October 26, 2016