Why do we attach vectors tail to head not head to tail or head to head

Let us have the simplest example to clear the stated idea. Let the vector be displacement vector.Suppose a man travels from point A to point B and then from point B to point C. (Remember that the initial point is denoted by `tail` and similarly the final point is represented by `head` in vector operations)Therefore, for displacement A to B, A is tail & B is head since the man moves from A to B. For displacement B to C , B is tail and C is head.But total displacement is A to C .Therefore,similarly tail (A) is connected to head (C) as tail and head are majorly used to indicate direction.