Our tree is twelve foot tall. The top Four foot acts as a Christmas tree for the (hay) loft/mow. Our border collie likes to curl up next to tree in loft where she can look out and down into the tree. There is often a cat or two sitting on the railing around the 9x9 opening that the tree and stairs go through, doing the same . RAnger often finds the ornaments of border collies and brings them to me. I now place them low enough for her to easily get them. The animals love the tree. Not a climber in the group but many curl up under.
It sounds delightful for everybody!