Enable checkbox of advanced tab for new products by default

I changed the php code of html-product-data-advanced.php file in wp-content\plugins\woocommerce\includes\admin\meta-boxes\views from

	<?php if ( post_type_supports( 'product', 'comments' ) ) : ?>
		<div class="options_group reviews">
			<?php
				woocommerce_wp_checkbox(
					array(
						'id'      => 'comment_status',
						'value'   => $product_object->get_reviews_allowed( 'edit' ) ? 'open' : 'closed',
						'label'   => __( 'Enable reviews', 'woocommerce' ),
						'cbvalue' => 'open',
					)
				);
				do_action( 'woocommerce_product_options_reviews' );
			?>
		</div>
	<?php endif; ?>

to

	<?php if ( post_type_supports( 'product', 'comments' ) ) : ?>
		<div class="options_group reviews">
			<?php
				woocommerce_wp_checkbox(
					array(
						'id'      => 'comment_status',
						'value'   => 'true',
						'label'   => __( 'Enable reviews', 'woocommerce' ),
						'cbvalue' => 'true',
					)
				);
				do_action( 'woocommerce_product_options_reviews' );
			?>
		</div>
	<?php endif; ?>

The checkbox of “Enable review” when I create a new product is enable, but it doesn’t work. How can I mark it by default for every new product?