At my local yoga studio, there is a female change room, a male change room, and a gender-neutral restroom. Despite this, after a class 2 years ago, a male entered the female changing room (accompanied by his female friend no less) which is small and full of nude women who were changing and showering, myself included. No one said anything. So, even when a gender-neutral changing space is offered, the women's change room is still subject to the presence of men. I also suspect there is absolutely no way for the yoga studio to address this without risking the label of transphobic.