Texting while driving is a major problem here in America: 1,600,000 accidents happen every year due to them.
If texting someone is that important (it isn't), there are other means of communicating with someone, such as with the help of voice assistants like Siri or Cortana. Some people haven't learned how important it is not take their eyes off of the road, so Honda made this GIF to help drive the point home. Check it out:
If that doesn't do it, watch this documentary from Werner Herzog. But seriously, stop texting while driving.