Seriously? Are you kidding?
No, with how many people have become totally obsessed it is not. They are people with no manners (typical in the last 3o years); combine with a mini-computer and voila, you have your wasted time.
Do the math. The restaurant has X amount of seating. It’s open X number of hours. If the customers took 1 hour per seating in the past but now they’re taking 2 hours per seating, then how can the restaurant still serve as many customers? Simple math shows they can only serve half the number they were in the past.