And even if every person did live in a detached home where they could hypothetically throw a party, there are smartphone connected Ring cameras everywhere. Parents always know what's going on now.
Data privacy is an instructive example of what happens in a more free-for-all situation. If there were stringent protections in place, the data broker industry wouldn't exist.
There was a brief window when Pandora was available in Canada (long ago now), but I still remember how good their recommendations were. Nothing matches it even today