I know that I ask question that everyone should know, but at age 76, I try my best. I not only do animations (try), but I also have a public access tv show that keeps me busy with video editing, so I do not solely devote all my time to Blender.
I have a model with leather vest and leatgher leggings, I put bones on the body. I leggings are parented to the body mesh and the whole mesh moves accordingly, but when I have bones, how do I get the leggings an chest leather plate to move with the bones?