Families try to prevent boys playing girls' sports

Story here. Excerpt:

'At the beginning of her freshman year at Upper St. Clair High School, Kallan Piconi had plenty of decisions to make. Which classes would she take? Which clubs would she join? Most importantly, which fall sport would she play?
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On Sept. 11, Kallan's mother, Eden Piconi, arrived at her seat for the game at Peters Township, ready to watch her daughter compete. Quickly, Mrs. Piconi saw something in the action that jarred her: Running up and down the field with the girls was a boy wearing a kilt and a Peters jersey.

At first, Mrs. Piconi wanted answers. How was this allowed? But, as the season progressed, and Kallan was confronted with more boys, her mother couldn't deny the small thrill of watching her stop those young men from scoring goals.
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While her daughter faded away from her first semester of high school, trapped in their two-story, red-brick home, Mrs. Piconi started on a mission. She called athletic directors, asking that original question: How were boys allowed to play on girls teams? How was this safe? Look at what happened to her Kallan.

"I just didn't want to let him score," Kallan said. "I didn't want to let him of all people get by me. I wanted to prove myself."'