By Sara Wallis Reader, I cracked. I didn’t want my 11-year-old to have a mobile phone \- EVER. Of course, we all know they are an addictive gateway to hellsites and bullying and grooming and porn and all the other terrible things in the world. I also don’t want him to turn into a zombie or walk into a lamppost (I have done this). But as he started secondary school, it seemed to be the “done thing” with the school even pushing the need for a smartphone in the classroom. We agonised, as every parent does. Technology is advancing! We can’t hold our kids back. Will he be mocked if he’s the only ki…