You missed the point. The power and internet might be on, but you might not be authorized to use them for payment. Maybe you said a naughty word on the internet, or maybe your social credit score isn't high enough, or maybe the new sharia-vegan overlords have banned meat sales to non-Muslims, or maybe the giant pile of glitchy Microsoft shitware written by an army of H1-B's has stopped working and nobody knows why. And also the store's ISP's accounting office's Winblows computers took a shit too, so they can't pay transit fees to their upstream, so you're now stuck with dialup speeds until they can reinstall the entire glitchy software suite on new machines and then restore from backups on tape.
Just look at ATC.