Checkbox set to "checked" by default

Add this code to your footer.php file right below the call to wp_footer()

<script>
(function($){
	$(document).ready(function(){

        $('#mailpoet_checkout_subscribe').prop('checked', true);

	});
})(window.jQuery);
</script>

Is there a way to have the checkbox “checked” by default on the CheckOut and New User Registration page using CSS only? Something like below?

#mailpoet_checkout_subscribe {
checked=true;
}

OR would any of the below work by adding to functions.php of the child theme?

add_filter( ‘mailpoet_woocommerce_subscribe_too’, ‘__return_true’ );
add_filter( ‘mailpoet_woocommerce_enable_checkout’, ‘__return_true’ );
add_filter( ‘mailpoet_checkout_subscribe’, ‘__return_true’ );

Your inputs will be appreciated. Thanks much.

This should be a built in option!