Child-parent relationship is a confusing concept to understand and master, but important at that. What a child-parent relationship is is that it "links" thing together without joining the objects into one. This is good for when you have such things like humanoids when you want a singular part to move, but the entire creation. (ex: parent: torso; child: arm; whatever the arm does will not affect the torso, however, if the torso rotates, the arm will rotate with it)
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