Home Office won the right not to issue gender-neutral passports to UK citizens in March following a legal appeal by the activist Christie Elan-Cane.However, the court’s three senior judges said at the time that if international trends towards more widespread recognition of “non-binary” identity continued, at a future date this stance could breach human rights.Bangladesh, Denmark, India, the Netherlands and New Zealand also include non-binary gender options on passports, and 18 US states allow residents to mark their gender as ‘X’ on their driving licence.The Home Office has previously argued that issuing passports with an X mark could bring additional costs.