I'm confused. If I was a kid, I can still get my cigarettes at the Linux store? (By analogy with eastern Europe where age checks are lax.)
Or is the idea that the Linux store is not allowed to sell cigarettes anymore?
To use your metaphor, this is saying that a store needs to limit you to the kids section if it is told you are a kid at the door. The exemption here is because a park doesn't have doors to perform this check onto.
(PS. I'd hope we were past trying to hamfist physical metaphors to describe the digital landscape. But alas).
No, the cigarette store has to deny service if the OS doesn't send it an age signal.