Private parties are quite literally me and you in addition to large multinational corporations. If you think large multinationals need to be restricted then just say that directly instead of putting forward nonsensical semantic arguments.

> I, for one, don't want my biometric data in your system without my explicit consent.

If it's a single individual watching (for example) the sidewalk in front of his house and not disseminating the data in any way then what does it matter? Where is the potential downside? There are plenty of neighborhoods with at least a few retirees sitting staring out the front window for multiple hours each day.

As far as I can tell in the vast majority of cases surveillance only becomes problematic when both ubiquitous and centralized.