A six-year-old boy in the US state of Colorado has won the right to use the girls’ toilets at school because he is transsexual. Meanwhile, in a similar case in Australia, a nine-year-old boy has also won the right to use the girls’ toilets. And new laws in California mean transsexual students can choose to join either girls’ or boys’ sports teams at school. In Colorado, the parents of six-year-old Coy Matthis took their son’s school to a civil rights panel, claiming it was discrimination to disallow their son from using the bathroom of the gender with which he identifies....