Advertising create an unrealistic world for most youth. For girls its all of the photoshopped bodies and perfect teeth and heavy makeup. For boys it about all the trucks, car and sports that they'll be forced to play someday. Also for young women sports or engineering toys aren't very apparent in any advertisements which leads them to believe that they can't build, or play sports or throw a ball around.
The figurative language used in the excerpt is a simile. It adds to the characterization because it compares <span>the mother as a calm/silent person.
-Hope this helps.</span>
The main idea of bike safety is to always were proper gears to be safe.