While teens are teens who are emotionally unstable. To warm both body and soul is very social with dating a friend. So there is a chance and liked enough to the opposite sex.
As a young teenager with mood swings. Like warmth, both physically and mentally. Ages who like to socialize with friends fellowship. It has close affinities opposite sex.
While teenagers are young with emotional. Like the warmth of body and mind. An age like to socialize with friends to socialize Therefore, a chance to close and be in the opposite sex.