When moving object, should i use transform.position or a animation clip i recorded ?

In my case i did that when the player is walking on a platform object(cube gameobject) it will move up like elevator. But first i recorded the elevator moving up and down and then i'm using the animations:

 void OnTriggerEnter(Collider other)
     {
         if (other.gameObject.name == "ThirdPersonController") // "OnTop Detector"
         {
             counter = 0;
             Debug.Log("On Top of Platform");
             target = GameObject.Find("Elevator");
             GameObject findGo = GameObject.Find("ThirdPersonController");
             GameObject findGo1 = GameObject.Find("Elevator");
             findGo.transform.parent = findGo1.transform;
 
             GameObject go = GameObject.Find("CubeToRaise");
             go.GetComponent<RaiseWalls>();
             Debug.Log("The button clicked, raising the wall");
             touched = true;
         }
     }
 
     void OnTriggerExit(Collider other)
     {
         GameObject findGo = GameObject.Find("ThirdPersonController");
         findGo.transform.parent = null;
     }
 
     IEnumerator playAnim(GameObject target)
     {
         Animation anim = target.GetComponent<Animation>();
 
         foreach (AnimationState clip in anim)
         {
             // do initialisation or something on clip
             clip.speed = 1;
         }
         
             while (true)
         {
             if (counter == 1)
                 break;
             anim.Play("Up");
 
             while (anim.IsPlaying("Up"))
             {
                 yield return null;
             }
 
             anim.Play("Down");
 
             while (anim.IsPlaying("Down"))
             {
                 yield return null;
             }
 
             yield return null;
 
             counter++;
         }
     }

But i wonder if i want now to change the elevator moving up height i mean now it will move up until the height i recorded it to move to. But if i want that the elevator will move up none stop or will move up to a specific height value i will set ? Can i make the animation clip to keep moving the elevator up to specific height value ? Or i should leave the animations alone now and use Vector3 and transform.position ( like i did before in other projects ) to set all the elevator properties like speed height and more ?

And when do i use animation clips and what for ? I mean if i make a platform game with many moving elevators or platforms from side to side would i record a video clip animation or will handle it with Vector3 and transform.position ? Then what is the animations clips are for at all ?