Wait, did they think the bathrooms were special and cost money? Many places just slap a paper “gender neutral” sign on their washrooms and call it a day until a nicer sign can come in. The really good places knew this shit ages ago and already saved themselves the trouble by putting in a shared sink area and having stalls with real doors. As someone who has literally had to fit washrooms into floor plans I can guarantee that if cost and ease were problems then we’d only have gender neutral washrooms.