Quote - In one layer, you can animate Little Red Riding Hood walking along a walk path through the woods.
On a separate layer you can animate the Wolf running ahead to eat up Grandmother.
On a third layer, you can have a bird fluttering from branch to branch scolding the Wolf.  Etc.
DPH

Yes, if it worked properly, that's a good example of what one might use it for.
Or, in a single character, for example, you might have all the lip-synching on one layer, facial expressions on another, hip translations on another, hand movements on another, etc...