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The male and female symbols together usually indicate a unisex toilet.
A unisex public toilet, also known as a unisex toilet, unisex bathroom, family toilet, or gender-neutral bathroom, is a public restroom or toilet that is available for use by either the male or female gender, including family restrooms for family or elderly use. Unisex toilets can be used by all persons, regardless of gender or gender identity. Unisex toilets may be built by developers to save costs; instead of building two separate facilities, they only need to build one or one type, which may save costs as well as reduce space. Where it is impractical to have separate facilities, such as in airliners, trains, or buses, unisex toilets are used.
The primary cause of the adoption of unisex bathrooms in the US is the increasing existence of elderly couples, one of whom requires the other's assistance because of mobility issues. However, transgender advocacy groups in the United States have taken up the cause of unisex bathrooms, as they see unisex bathrooms as a solution to eliminate harassment and other inconveniences for transsexuals experienced when using conventional bathrooms.
In 2005, there were five American cities, including San Francisco and New York, with regulations requiring public restroom access based on persons' perceived gender identity, rather than their birth sex.
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