Comment by vdqtp3

You can look at contract towers to see how private entities handle ATC duties. They under-staff to the point that single controllers are handling the entire airspace without so much as coverage for the bathroom sometimes for the full length of their shift. Service is significantly worse in all aspects - the controllers aren't as well trained, they can't handle as much traffic as safely, and they're both less pleasant and less clear on the radio (phraseology, etc - not voice clarity)