I feel like Grange Hill provided a more realistic look into the inner workings of a school than Jack does. Or Harry Potter for that matter.Yeah headteachers aren’t too busy to be tweeting her at all. Also a lot of headteachers are VERY wary of messaging anyone through social media (I’ve worked HR in schools).
Also for many many schools the person organising this would not be the HT but the bursar or business manager or catering manager.