acceptance_as_validation based jquery validation

http://contactform7.com/acceptance-checkbox/

accept_terms options based contact form 7 how we can validate?

[acceptance accept-this] Check here if you accept these terms.

I have seen your code for :

this.find('.wpcf7-acceptance').click(function() {
			$(this).closest('form').wpcf7ToggleSubmit();
});

On submit need validation message same like others fields

https://wordpress.org/plugins/jquery-validation-for-contact-form-7/