No such thing about private laws but there can be bylaws/rules that visitors implicitly agree to when they visit but these cannot conflict or invalidate the law of the land. E.g. they are requesting that people not take photos but they cannot physically stop anyone taking photos, they cannot seize equipment, nor demand that any photos taken are deleted or not used, nor take any action due to photographs been taken as long as the photographs don't break any laws. All they can do is use their legally given right to ask people to leave the property as that's what's proscribed as allowable under the law of the land.
Yes. But that's the law. The law can be changed. There just needs to be a supportive majority for that. Them(TM) opaque private companies also have to obey the same laws as me and me as whatever can force them to accept certain things. Even though Them don't want it.
They're just excel their granted rights. Sometimes more than that. Then, sometimes get fined or worse. I also can do my right flipping and creative money laundering as well. I have more to lose, I guess, is the reason I don't.
But I'm pretty aware of my rights :)
So I have to accept that and insist on that this has to be accepted haha
I still don't get what benefits it brings not to have photos made and spread.
Edit *In the end, it's all ads.