Are there really co-ed bathrooms at some colleges?

I was talking to someone the other day and I'm fully aware that there are co-ed dorms at many colleges (I'm currently at community college) but someone was telling me that there's co-ed bathrooms at their college! Like toilet, sinks, showers type of bathrooms...was this for real? I'm no prude but that honestly seems like it's just asking for bad things to happen...like guys setting up hidden cameras in the shower, peeping on people, attacking the lone girl in the shower late at night, etc. and it also seems like it would be illegal (plus it would just be annoying because you wouldn't be able to wander around half naked like in a locker room while getting dressed). Most public restrooms are separated by sex. So, does this really exist? I've actually heard about this a few times before and I don't really believe its real. And if it is, do you have any experience or feedback about it? Thanks and sorry this is a weird question!