text: One reason why drives shouldn't be on their device while driving is because they cause accidents. According to edgarsnyder. org, "The National Safety Council reports that cell phone use while driving leads to 1.6 million crashes each year. Nearly 1 out of every 4 car accidents in the United Statesis caused by texting and driving." From this evidence it states that devices are a threat to the safety of the driver and other drivers on the road.