I am the parent of an adult “transgender” woman. Thankfully, she preferred chorus and creative writing to sports while in school. But, on behalf of all Virginia children, adolescents and teens that temporarily or permanently identify as transgender, I submit my humble opinion that allowing them to participate in school athletics that matches their gender and not their sex assigned at birth helps these students far more than it supposedly “harms” cis-gender students. 
Transgender students typically seek out private stalls, bathrooms, or changing rooms. Transgender girls are far, far more likely to be bullied, harassed or assaulted by other students or even faculty in and out of school than cis students. Transgender female student athletes who LOSE their events - well, we never about those, do we? But if one transgender female student - and they are still uncommon -  wins an event, it provides immediate fodder for transphobic, Conservative, or Evangelical Christian parents, media and politicians to attack and harass a student, possibly outing them and making their lives miserable and potentially placing a target on them and their families. And this is all done for political, transphobic, and bigoted reasons. 
Recently, a trans female student won 3 out of 4 of her track races at a meet in Illinois, resulting in an emotional school board meeting in Naperville in which, again, misinformation about trans kids, biology, sex and gender were repeated. Of interest to me? The cisgender girls who also won multiple events that day on the track were not excoriated for being hyper-masculine or unfairly-advantaged athletes. Nada. Silence. At the professional level, additional scrutiny may be advantageous on a sport-by-sport basis as studies continue to monitor and analyze what, if any, advantages OR disadvantages athletes receiving HRT have in a sports event. Considering that boys don’t even begin puberty until an average age of 14, and trans girls are often on puberty blockers or HRT, this continued attack on kids participating in school sports is, bottom line, a very sad testament about parents who think their daughters will excel or get 15 minutes of fame or maybe their own TV show as a result of targeting one or two trans participants in school sports. Let’s keep Virginia schools accepting and open to all students, from clubs and classes to athletic fields. Celebrating all the students that are beloved by their family and friends will, I firmly believe, uplift Virginia’s educational endeavors far more than judgment and discrimination. Thank you.