Enemy Patrol with NavMesh

//PatrolRoute gameobject and children locations have been created
// enemy has a navmeshagent component on it.

using UnityEngine.AI;

public class EnemyBehaviour : MonoBehaviour
{

    [SerializeField] private Transform patrolRoute;
    [SerializeField] private List<Transform> locations;
    private int locationIndex = 0;
    private NavMeshAgent agent;


    private void Start() {

        agent = GetComponent<NavMeshAgent>();
        InitializePatrolRoute();
        MoveToNextPatrolLocation();
    }

    private void Update() {

        if (agent.remainingDistance< 0.2f && !agent.pathPending) {

            MoveToNextPatrolLocation();
        }
    }
    private void MoveToNextPatrolLocation() {

        if (locations.Count == 0) { return; }
        agent.destination = locations[locationIndex].position;
        locationIndex = (locationIndex + 1) % locations.Count;
    }

    private void InitializePatrolRoute() {

        foreach (Transform child in patrolRoute)
        {
            locations.Add(child);
        }
    }