Because the ability to scale up a bunch of officers sitting around writing down literally everything they see is limited in comparison. It can only be so invasive and “always-on” everywhere. Throwing up a few dozen flock cameras costs a fraction of that and scales incredibly quickly.

It is a curious ‘small government’ instinct that wants government capabilities to be restricted from ever becoming efficient or scalable, even though the population and economy and complexity of the world the government is tasked with regulating scales up.

But often the inverse argument is used in respect of private corporations. Obviously it would be unreasonable to expect Google to vet every ad and YouTube video uploaded tot heir platform, and make responsible editorial decisions about which ads and content to show to children. Surely to allow them to scale arbitrarily large we must make sure not to overly burden them with regulations.