Daredevils by Shawn Vestal

I would describe "Daredevils" not as a coming of age story but more of a "loss of innocence" story.
Each of the main characters loses their innocence in one way or another. Loretta is the pivot point and she loses her innocence early when she sneaks out of her strict Mormon home to meet her older boyfriend. She then loses her innocence again as she is married off as a sister wife to Dean. When the family moves to a different state and Dean rejoins his brother and family, he loses his innocence being cast into a world that is still Mormon but not as devout and one where he is not the absolute leader. Jason wants to escape his Mormon background and small town after idolizing Evil Knievel's daring jumps and media exploits. He will lose his innocence after seeing his idol as a man and as soon as he decides to become Loretta's savior. Loretta's first boyfriend and Jason's friend will lose their innocence as they fall under Loretta's spell. Freedom may not be all that they expected or can handle.