Un bar in Italian is not a bar like one might think in the American sense (or a pub if you’re British/Australia/etc.).
Un bar is more like a café, a place where you might go to get a quick espresso, a sandwich, something for lunch, pastry to go with your coffee, etc.
I can’t think of any town or city in Italy that doesn’t have at least one bar.
Here’s another video from Easy Italian (be sure to follow them on YouTube) about ordering coffee in Italian!