FWIW this is a more of social issue rather than a legal one. At least in America, taking photos / videos of things which are plainly visible in public spaces is legal (different for private property). Caveat wiretapping laws and anything else relevant.

So for many common situations, the most you could do is make a polite request stating your preferences, without any expectation that it'd be enforced, unless Apple just feels like it as a policy decision.