The potential for abuseis quite real and yes, a four-room
   changing scenario is more logical. Still, I don't think there
   should be a need for gendered changing rooms anyhow; but our
   cultures have built up a very strong secrecy about the body; the
   prize dangled (pun intended) as reward for marriage. But will
   Planet Fitness change society's attitudes towards the human
   body? *Hard to say. *Maybe a 3rd changing room for "Other" would
   suffice. You have to remember: keeping locker rooms
   gender-separated DOESN'T eliminate abuse. *Gay men and Lesbian
   women have used locker rooms as pickup places as long as there
   have been locker rooms, so no matter what you do, you have to be
   on your guard a little. Thankfully, I never cared who I was
   changing in the room with. *I've been in mixed-gender changing
   rooms, same gender, all the same. *We all look weird naked. *I
   find the human body hysterically funny.