A frightening amount of drivers will fess up to texting while driving. One recent survey found that 70% of people will admit to using their smartphones at the wheel. Now a new study goes beyond bad behaviors to investigate the motivations behind them. When it comes to teen drivers at least, it appears the culprit is an ascendant cultural plague: FOMO. FOMO, an acronym for fear of missing out, is not just another cloying bit of slang, report Liberty Mutual Insurance and the non-profit SADD, an acronym for Students Against Destructive Decisions.