“That’s why NOT so many people go to theaters these days.”
The biggest reason fewer people go to the theater these days is that pretty much every movie is easily accessible for “free” online as pirated content.
This is not being done so openly as Napster (which did the same thing to music album sales), but college-age students, who don’t have a lot of money, are savvy enough to get bootlegged movies and share with their peers. As this demographic gets older, and a new generation of teens and college-aged movie consumers come along, the impact will be even greater. This phenomenon is having an impact worldwide.
What you describe is very localized. There are theaters that have rowdy crowds that chase off other patrons. When theaters fail to put a stop to this, a large segment of their customer base go elsewhere. Or, as you suggest, they stay home.
A couple of other significant factors are the amount of dreck that Hollywood cranks out and the shrinking attention span of video content viewers. Hollywood is often out of touch with what consumers want. Also, a new generation of video watchers get bored so easily that it is hard to hold their attention for a feature-length film. These would rather spend hours on social media or viewing short videos on YouTube in a modern channel-surfing way.
I won’t go to the movies anymore because Hollywood has made it clear how they feel about Christian conservatives. I’m not paying anyone so they can insult me. I’m done with those losers.