A Dragon's Rider (Unedited)

UNEDITED VERSION ( edited version on my page)
In a world where every year, five male children from each city and village between the ages 15-18 are chosen to become dragon riders, what happens when only four males get chosen from one village? And what happens when they test the girls and the fifth child is chosen?

Editor Credits:
@Weylyn_Wolf
@arvialle