GetComponentsInChildren<Collider2D>

I want my character as a ragdoll but when i try to Ignore the colliders it doesnt work
this is my movement script

Code (csharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class movePlayer : MonoBehaviour
6. {
7.     public GameObject Player;
8.     public float speed;
9.     public float jump;
10.     private float move;
11.     private Rigidbody2D rb;
12.  
13.     void Start()
14.     {
15.         rb = GetComponentInChildren<Rigidbody2D>();
16.  
17.         Collider2D[] colliders = Player.GetComponentsInChildren<Collider2D>();
18.         for (int i = 0; i < colliders.Length; i++)
19.         {
20.             for (int k = i + 1; k < colliders.Length; k++)
21.             {
22.                 Physics2D.IgnoreCollision(colliders[i], colliders[k]);
23.             }
24.         }
25.     }
26.  
27.     void Update()
28.     {
29.         move = Input.GetAxis("Horizontal");
30.  
31.         rb.velocity = new Vector2(move * speed, rb.velocity.y);
32.     }
33. }
34.  

and my heirarchy for player is