The author's son missed taking photos while on his trip most of all. Courtesy of Kristina Wright When my son went on a school trip to England last year, he couldn't use his phone most of the time. It was a huge change for both of us — we text most of the day, usually. The silence felt loud to me, but he found he mostly didn't miss texting. When my son told me the details of his nine-day school trip to England last June, one rule stood out above the rest: they wouldn't be able to use their phon