Is it normal for parents to instruct their children not to speak with or interact with a certain family member/relative because of the fact the parent has fallen out with that person? For instance, a disagreement between a parent and their sibling means the children are told not to speak to their aunt/uncle and even their cousin by connection to their aunt/uncle?
Im not asking if it’s acceptable or should be done or understandable but is it normal in the sense that you do it or you know of people who do?