Contact Form Datepicker Placeholder

I am trying to change the placeholder on this contact form (bottom of page) on my datepicker so it reads “Desired Inspection Date*” I used the code below in my child theme functions.php folder but it didn’t work. I used this same code successfully in two other Enfold installs so not sure why it is not working. Can you please help? Thanks!

add_action('wp_footer', 'ava_contact_placeholder');
function ava_contact_placeholder(){
?>
<script>
(function($){	
	$('.avia_datepicker').removeAttr('placeholder');
	$('.avia_datepicker').attr('placeholder', 'Desired Inspection Date*’);
})(jQuery);
</script>
<?php
}