I believe there was a reddit thread one time about some family in New York that cut ties from their parents or grandparents, and due to some age old Kinship law, the elders could take children to court for not allowing them to see grandchildren or something of the like.

It's fascinating in the US that we've gotten to the point that families can break contact entirely and be successful but due to completely out of date institutions baked in to law, we're stuck with arbitrary reasons to engage with hostile people. As a judge, why would you ever grant rights of a grandparent willing to take their children to court to see their grand children short of an abuse related situation?