Explanation:
The brains emotional center is the amygdala. It develops during early teenage years and remains in an active state during teenage. This makes the teenagers very susceptible to impulsive behavior.
But the prefrontal cortex which is not fully developed at this stage is highly responsible for their impulsive behavior. This makes the teenager child not to take proper decisions at times and makes them emotional.
Adults are however have a fully developed prefrontal cortex which helps them to take decisions properly. They avoid emailing or texting as they know that it is a dangerous thing to do while driving and are able to control their emotions and think logically and practically.
Adults are able to make logic decisions and can plan ahead to avoid and harm whereas teenage feels to do so because amygdala dominates in the teenage years.