You’re ready for that nerve wracking event in every parent’s life – the school parents’ evening. You’ve done your best to look neat and tidy when your son says, ‘Mum, you’re not going in that jacket are you?’ It seems there is no fashion critic so brutal as a child – especially if Mum is going to be witnessed by their peers and teachers. We sent Tamsin Smith to meet some women and their children to find out why it matters so much.