Cross-sectional correlational studies cannot establish causation and it's entirely possible (frankly, likely) that more deprived kids spend more time in front of a screen because their environments are less stimulating/interesting/safe.
This is the same as quitting smoking or just not thinking about an elephant. You can almost never cease/stop doing something, yet you can almost always displace it with something else.
This is the same as quitting smoking or just not thinking about an elephant. You can almost never cease/stop doing something, yet you can almost always displace it with something else.
(Disclaimer 'altacc suggests: I do have kids.)