Damien

Gender-neutral toilets have been around for a long time purely out of convenience/space anyway. Some places only have one or two toilets so make it accessible to all. I know the National Theatre bar is unisex. A bar near me also has it.

These never have urinals though which is the only point of contention. Otherwise, it's a set of private - unisex - cubicles and then a shared area for washing hands.