I went to see Top Gun a couple weeks ago, it was my first time in a theater in years. There were five different ads, the gist of all of which were, "Don't forget you're in public, so don't talk or pull out your phone or get up if you don't have to". One of them literally said, "We know it's been a while since you've watched a movie in public, and maybe you've forgotten how that works".
It was sort of condescending but at the same time I totally get the need.
I think if theaters want people to keep coming, they will need to make the experience better than home, and that will include enforcing no phone/no noise rules.
Most of the commercial space is either restaurants/food or service places like hair salons, dry cleaners, etc. Very little in the way of retail stores. Mostly as the occasional Target/Walmart/etc. big retailer nearby. This seems to be the assumption for single professionals/married without kids demographic: more dining, but buying things is mostly online or big box general retail stores.
Sure, there's the Movie Theatre, but having gone last week when they had $3 tickets, people have forgotten how to go to the Theatre...likewise, we went to Cirque de Soleil's OVO and it's clear we've lost a little in the 'how to entertain' and a lot of 'how to behave while being entertained'.