Movement.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;

public class Movement : MonoBehaviour
{

    public event MovementFinishedHandler MovementFinished;
    public delegate void MovementFinishedHandler();

    [SerializeField] 
    private Transform target;

    [SerializeField] 
    private float moveSpeed;

    [SerializeField] 
    private float terminationDistance = 0.01f;

    [SerializeField] 
    private bool shouldMoveImmediately = false;

    private bool shouldMove = true;
    private bool movementFinished = false;

    public void StartMovement()
    {
        shouldMove = true;
    }

    public void Update()
    {
        if (!movementFinished && (shouldMove || shouldMoveImmediately))
        {
            if (Vector3.Distance(target.position, transform.position) > terminationDistance)
            {
                transform.position =
                    Vector3.MoveTowards(transform.position, target.position, Time.deltaTime * moveSpeed);
            }
            else
            {
                movementFinished = true;
                MovementFinished?.Invoke();
            }
        }
    }
}