On a slightly different tack, as one who visits schools to run sessions with classes I have to be mindful of DBS, safeguarding, H&S, switching my mobile phone off, signing in, signing out, visitor badges, being escorted and supervised and all the rest of it. However, hardly anybody bothers to ask me if I consent to appearing on their social media output. It's assumed by default that I do, or that my consent isn't actually required. I consider myself fortunate to have left the profession before direct e-mails from parents became a pain. I would find social media demands utterly intolerable. Social Media should be considered a form of display, and for those schools still following the traditional Teachers' contract, preparing displays is non-contractual. It should be done by support staff.