I need a quick poll on whether I am being unreasonable to insist that school let my DD take her mobile phone on a school trip to London. School have said no phones as worried they will be messing around texting each other etc They are also visiting houses of paliament and not allowed them in there. However this is a big trip for her, leaving Devon at 5.30am, and I am worried about her safety. I know school will have everything in place but what if she got split up, if she has her phone she will have a way of getting help? AIBU She is 10 by the way.