That&#x27;s as likely to be effective as the famous &quot;To use Bebo&#x2F;Facebook&#x2F;Twitter you must be over 13. Are you over 13? [Yes] [No]&quot; option.<p>&quot;To get the thing you want, you have to say Yes. Will you say yes?&quot; - How many people honestly choose the &quot;no&quot; option?