Almost 40-years ago I lived in a student owned/operated co-ed dormitory at Portland State University, Portland, Oregon. The bathrooms there, which included showers and bathtubs that each had its own enclosure as did the toilets and urinals, were all unisex facilities.
During my residency term there were no problems involving use of said facilities, none whatsoever.
As to unisex facilities that are accessible to the general public, I frankly do no believe that will work well. Sexual predators are not more common in the general population as opposed to university campuses, but 40-years ago such behavior was not tolerated. Today, anything seems to be acceptable in public restrooms!
I lived in a co-ed dorm in college too and had no problem with it but in the general population this is a terrible law.
Especially in Highway Rest Areas, there won’t be a RA(Resident Assistant) to report to...
Looking forward to transgender Department store changing rooms too/sarc