Earlier quoted context omitted.
Sometimes people just want to go have a get-together including well-trod "comfort food" style means, but with someone else (the restaurant) doing the cooking and cleanup. I don't go to restaurants to be entertained by the food or "impressed" by the "creativity" of the chef, and I'd wager neither do most people.
Then you're looking for the equivalent of a solid takeaway place, not somewhere where you go for the "experience" and "gastronomy"
There are plenty of “sit down” restaurants that aren’t fancy, but are more than “solid takeaway” that fit in this picture. And these are what most folks actually think of when they picture dining out.