I doubt it would scale very well. It's easy to put a private guard within 5 minutes of nice homes in a high crime area. It's another thing to have guards 5 minu

I doubt it would scale very well. It's easy to put a private guard within 5 minutes of nice homes in a high crime area. It's another thing to have guards 5 minutes from everywhere. You run into the same problem as a private sector post office or internet provider. They will not provide the same service to everyone regardless of location. The mail that has to be delivered by helicopter to the top of a mountain costs a stamp. The private shipping company wants a small fortune to delver there. The private internet companies won't provide service to some rural areas at all (even though the government pays them over and over again to increase accessibility)