How to remove coins on collision?

Question

2D

2D game. When a player collider collides with a coin collider, it should be removed and coins added to the player
. I write:

private void Coins()
    {
        if(gameObject.name == "Coin")
        {
            coins++;
            Destroy(gameObject);
        }
    }

and doesn't work.
Everything is handled in the Character Controller.

Answer 1

See any tutorial on handling collider collisions.
And it is better not to delete the coins, but to hide them and then reuse them. The constant generation and deletion of objects of the same type is a useless load.