It's only male and female, girls and boys, XX and XY.  There is no third sex.  So men should not be allowed to access the ladies room.  Get 10 more reasons why transgenderism is wrong: 
https://www.tfpstudentaction.org/blog/10-reasons-why-transgenderism-is-the-familys-worst-enemy

We must protect the family.  Help kids understand human nature and right reason, not confuse them.