Why are the functions in the functions.php file in the child theme not firing?

Question

WordPress

I created a child theme from storefront, placed the functions.php file in it, but nothing works. If you register in the parent and switch to it, then it works. What could be the reason?

Answer 1

add_action( 'init', 'remove_my_action');
function remove_my_action() {
     remove_action( 'woocommerce_before_shop_loop','storefront_sorting_wrapper',9 );
}