Let all women participate in sports. Also, do you think a women’s bathroom sign ever stopped someone from assaulting someone in a bathroom? And not all sexual predators have a penis. And while I fortunately have not been assaulted, I’ve seen many women do stupid stuff in bathrooms like taking photos for Snapchat while others were in various states of undress. And how would this even be enforced? Are we supposed to strip down to be categorized? Who’s the one checking? Are we supposed to rat each other out? What if a bully uses this to get a cis woman kicked off of the team, because again, who’s checking and how are we enforcing? It would be a witch-hunt sort of mentality, harming all women, trans and cis alike.