Back in my college days, we used to take the PATH trains from Hoboken, NJ to NYC to visit McSorley's Old Ale House in the East Village area of NYC.
When I first went there, it was men-only. Then something happened ...
McSorley's Ale House
en.wikipedia.org
... Opened to womenWomen were not allowed in McSorley's until August 10, 1970, after National Organization for Women attorneys Faith Seidenberg and Karen DeCrow filed a discrimination case against the bar in District Court and won.[17] The two entered McSorley's in 1969, and were refused service, which was the basis for their lawsuit for discrimination.
The case decision made the front page of The New York Times on June 26, 1970.[18] The suit, Seidenberg v. McSorleys' Old Ale House (S.D.N.Y. 1970) established that the licensing of the bar, under the New York State Alcoholic Beverage Control Law, rose to the level of state action, thereby requiring the bar to comply with the proscriptions of the Equal Protection Clause of the United States Constitution.[19]
The bar was then forced to admit women, but it did so "kicking and screaming".[2] In 1970 Barbara Shaum became the bar's first female patron.[5] With the ruling requiring women to be served, the bathroom became unisex. ...
Yeah, the bathroom was unisex. It became typical to visit the bathroom and see a female also using the facilities.
At the time, there were no issues raised about that.
... we used to take the PATH trains from Hoboken, NJ to NYC ...
btw, one night, walking back from the PATH (Port Authority Trans Hudson, i.e., going under the Hudson River into NYC) one late night (early morning?) was the first and only time I have had police officers draw their weapons and point them at me. But that's a different story....