>>21452026>all gravies are sauces but not all sauces are gravies.All of this, and simply said. I like your logical mine.
The other distinction is that some families may never make simple tomato sauce without meat, and therefore call them all gravy in that case Restaurant menus may specifically call it "Sunday gravy" too. Hours upon hours of simmer. A simmery meat filled gravy would have at least sausage, bone-in shanks, meatballs and probably a least a couple rib bones. There will be a thicker viscosity, not just from the reduction of tomatoes, but also the rendered gelatin. They aren't adding flour but they may have browned or roasted bones and meat dusted in flour.
Though I make simple meat sauce at home, it's fast bolognese, and chefs that are famous for their addition of butter to bolognese, (Marcella Hazan) are simply subbing it in because it does not have rendered gelatin in it. Gravy is NOT low class, just your understanding and projection of it. Most of the Italians that I know universally appreciate good food made well.