woocommerce: make checkout fields not required

functions.php

//make billing fields not required in checkout
add_filter( 'woocommerce_billing_fields', 'wc_npr_filter_phone', 10, 1 );
function wc_npr_filter_phone( $address_fields ) {
	$address_fields['billing_phone']['required'] = false;
		return $address_fields;
}

//make shipping fields not required in checkout
add_filter( 'woocommerce_shipping_fields', 'wc_npr_filter_shipping_fields', 10, 1 );
function wc_npr_filter_shipping_fields( $address_fields ) {
	$address_fields['shipping_first_name']['required'] = false;
	$address_fields['shipping_last_name']['required'] = false;
	$address_fields['shipping_address_1']['required'] = false;
	$address_fields['shipping_city']['required'] = false;
	$address_fields['shipping_postcode']['required'] = false;
		return $address_fields;
}

// force mandatory fields in checkout - NIF
// add_filter( 'woocommerce_billing_fields', 'wc_dbs_filter_company', 10, 1 );
// function wc_dbs_filter_company( $address_fields ) {
// $address_fields['billing_company']['required'] = true;
// return $address_fields;
// }