why is my attacking not working

[bright moss]

using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Animations;

public class ChildFollow : MonoBehaviour
{
    public float ChildHealth = 5f;
    public Transform PlayerBody;
    public float ChildSpeed = 4;

    // Update is called once per frame
    void Update()
    {
        transform.position = Vector3.MoveTowards(this.transform.position, PlayerBody.position, ChildSpeed * Time.deltaTime);
        Vector3 target = PlayerBody.position;
        Vector3 destination = PlayerBody.position;
        target.y = transform.position.y;
        destination.y = transform.position.y;
        transform.LookAt(target);

        if (ChildHealth <= 0)
        {
            Destroy(this.gameObject);
        }
    }

    public void OnCollisionEnter(Collision collision)
    {
        if (collision.gameObject.CompareTag("PlayerSlap"))
        {
            ChildHealth--;
            Debug.Log("Child Touched");
        }
    }
}

basically only check the OnCollision Method

the other code has nothing to do with the issue

bassically i have a gameobject that works as a hit like if clicked the game mesh and collider gets turned on but yeah i have that in another script

but in this script besides the movemnt i want that if the AI touches a gameobject with the Tag PlayerSlap to deduct the health of the child

and if the childs health is smaller or equals to 0 to destory the Prefab

heres the gameobject btw

at u can see the tag is PlayerSlap and the Collider is set to triger

[bright moss]

pls help

[tough dew]

Out of all the possible debug messages...