A person's sex is of course only one of the recognized "protected
characteristics".
*http://www.equalityhumanrights.com/advice-and-guidance/new-equality-act-guidance/protected-characteristics-definitions/*
The full set is:
Age
Disability
Gender ressignment
Marriage and civil partnetship
Pregnancy and maternity
Race
Religion and belief
Sex
Sexual orientation
If we formally recognize one of the "protected characteristics" we
surely have to formally recognize and make provision within our rules
and operating procedures for all of them.
Although I point to a UK site my understanding is that these protected
characteristics are enacted in European Union law and thus apply across
the whole of the EU.
Stewart