This is just a way for overburdened middle class people to look down on a certain demographic that can afford more leisure.
I suppose that a person in their mid thirties with a wife, children, and a job like business executive, doctor, lawyer, or something more relevant than what many of us might have definitely won't have any time to spare spending a few hours a night playing video games.
They get up early in the morning, work extended shifts, come home, deal with the family, have supper and than probably have go over work related things and working out their finances.
A lot of middle-class people live beyond their means, there simply is no time for things as trivial as video games.
So they have open contempt for the rest of us losers who can idle away infront of a screen playing make believe.