The issue focused on it is that you can't form a contract with it. You can't talk about it. You can't pay it. You can't give it to someone else. You can't give it to your son. You can't give it to your daughter. You can't give it to your grandchild. You can't give it to your grandchild's son. You can't give it to your grandchild's daughter. You can't give it to your grandchild's grandchild.