Doesn't need to be.
It, whether site or residence, is what it is... as (solely) established by the owner/host, in both instances.
Guests who cannot abide by established house rules, in either case, have only one polite option open to them: leave.
But of course if said person hangs a huge sign on the house screaming “FREE” and then a visitor takes that too literally, they might have reason to be sore.