Parenting

The parent of a network object can only be changed if you are the Input Source of the object, or if you are the owner (server).

To change the parent of an object, call SetParent on it: Object.SetParent(newParent);

The original hierarchy of network prefab instances shouldn’t be changed at run-time. In other words, you shouldn’t unparent the original children of a prefab. Although, you can parent objects to them, just not unparenting them (prefab children) from their original parent.