How come everyone in this city is chilling in their idling car in a parking lot? Gas is expensive.

I swear, everywhere I go in West Houston, be it a grocery store, my gym, workplaces, etc, there are tons of people in their cars on their phones. The cars are all idling.

I get the need for AC. But I don't get why you wouldn't go indoors, where AC is way cheaper. I get that some are dealing drugs. That's cool. Others are waiting on a friend to pick something up. That's cool, tool. Some are Uber/Lyft/Food delivery drivers on break. That's also cool.

None of that explains the sheer number of people I see doing this. What's up?