How to set up enemy death in Unity 2d?

Question

Unity

There is such C# code for Unity 2D

void OnCollisionEnter2D(Collision2D touch)
    {
        

        if (touch.gameObject.tag == "EnemyKill")
        {
            life = life - 1;
            if(life <= 0)
            {
                rgb.AddForce(transform.up * speed, ForceMode2D.Impulse);
                rgb.GetComponent<CapsuleCollider2D>().enabled = false;
            }
        }
    }

When I start testing Unity, the number of lives when colliding with an object with the EnemyKill tag does not decrease. Where could be the error.

PS The variables I need have been created.

Answer 1

Do not reduce the life of the enemy or the player? In the script, as I understand it, only the subtraction of the player's life is written.