It isn’t hard to ruin the life of a thirteen year old. I seem to do it all the time. Take yesterday:

‘Mum, you are ruining my life. Everybody has an iPhone. You need it to look things up in class and to talk to people. I’m completely humiliated without one. Who  knows  what people are saying about me?…’

‘I accept that your life is in tatters, and I’m sorry for you. But in 20 years you will come and find me, throw your arms around my neck, and  thank me. You will be able to think without the help of influencers and you will not have a repeating backdrop of porn movies and pile-ons to spoil your dreams.’