Many ancient Romans in Rome didn’t have kitchens. It was a fire hazard for one thing. And living space was so expensive, most Romans lived in little one or two room flats. So they had to eat somewhere. By the same token, most Roman dwellings didn’t have indoor plumbing, hence the public toilets.
So, I think this “on the go” attitude had a lot to do with their living space.
What was she expecting to find a Frigidair side by side?
Pub = public house for eating and drinking because of the hazards. And what about the left overs?