Quaternion.LookRotation Active when not active.

Can anyone help me understand why the Quaternion.LookAT code is being active when it supposed to not be. when the enemy Spawns its Target == null. only when a player with tag player walks into its trigger collider will allow the enemy to obtain a target and go into his state machine. Even before the enemy Collects the info on his target he look rigth at the player.

 void Movement() {
             if(Target != null) {
                 transform.localRotation = Quaternion.LookRotation(Target.transform.localPosition - transform.localPosition);
     
                 if(Vector3.Distance(Target.transform.localPosition, transform.localPosition) > meleeAttackDistance)
                     transform.Translate(Vector3.forward * moveSpeed * Time.deltaTime);
             }
         }

The players location shouldn't even be available at the time to run the function quaternion.lookrotation. But even before my player has time to enter the collider for my enemy to set that he is the target. The enemy spins around and looks right at the player. The player still hasn't even enter the collider in front of the enemy to check the player is indeed his target.

     using UnityEngine;
     using System.Collections;
     
     public class AiController : MonoBehaviour {
     
         enum State {Idle, Pursue};
     
         State state;
     
         public GameObject Target;
     
         public float giveUpDistance = 20.0f;
         public float meleeAttackDistance = 2.5f;
         public float moveSpeed = 7.5f;
     
         private IEnumerator AILogic()
         {
             while( state != State.Idle )
             {
                 switch(state)
                 {
                 case State.Pursue:
                     Pursue();
                     break;
                 }
                 
                 yield return null;
             }
         }
     
         void Idle() {
         }
     
         void Pursue() {
             if(Target != null) {
                 if(Vector3.Distance(Target.transform.localPosition, transform.localPosition) > meleeAttackDistance)
                     Movement();
                 if(Vector3.Distance(Target.transform.localPosition, transform.localPosition) > giveUpDistance) {
                     state = State.Idle;
                     Target = null;
                 }
             }
         }
     
         void Movement() {
             if(Target != null) {
                 transform.localRotation = Quaternion.LookRotation(Target.transform.localPosition - transform.localPosition);
     
                 if(Vector3.Distance(Target.transform.localPosition, transform.localPosition) > meleeAttackDistance)
                     transform.Translate(Vector3.forward * moveSpeed * Time.deltaTime);
             }
         }
     
         void Start() {
             Target = null;
                     state = State.Idle;
         }
     
         void Update() {
         }
     
         void OnTriggerEnter(Collider other) {
             if(other.gameObject.tag == "Player") {
                 if(Target == null) {
                     Target = GameObject.FindGameObjectWithTag("Player");
                     state = State.Pursue;
                     StartCoroutine( "AILogic" );
                 }
             }
         }
     }

I only put a simple box collider in front of the enemy for this primitive player seen test. so when the player steps inside of the collider it grabs his tag and puts it as the enemy target. The movement code is within the state machine, yet even before it is active the Quaternion.LookRotation fires off. when player gets to like 50 distance from mob it turns and faces him.

What i am trying to do is get it so the enemy keeps looking the same direction, until the state machine gets activated and he follows the player. Enemy should only react if it sees the player, but at the moment he turns even if the player is not his target. I am not sure what i am missing, so that the enemy doesn't turn prematurely.