The Personal email field is provided so that you may enter an address other than your work email address. (greatexpectations.org)
But Facebook blindly trusts that they've actually selected their parent or guardian, even though it has a feature for users to designate who their family is, and the kid could put anyone in the email field, including an alternate address they control. (techcrunch.com)
Please fill out the form below (use your official student email address in the email field), and attach a photocopy of your student ID. (firstthings.com)