There is really not much more. It's simply the observation that strict time limits lead to the time always being used, and augmented the value of the limited resource - video gaming here. The cigarette analogy in the other reply is great. I saw that with children age 10 to 15, for what it's worth.
You see that observation echoed in the context of alternative strategies, as described on https://www.additudemag.com/adhd-teens-video-game-rules-limi... for ADHD (whether that exists does not matter here, in any case the strategies listed there are not limited to it) for example. I read better sources, but I don't find them now, probably just some random articles with some experts attacking a majority position (that screen time limits are good) that I thought convincing, like they pop up sometimes.
You see that observation echoed in the context of alternative strategies, as described on https://www.additudemag.com/adhd-teens-video-game-rules-limi... for ADHD (whether that exists does not matter here, in any case the strategies listed there are not limited to it) for example. I read better sources, but I don't find them now, probably just some random articles with some experts attacking a majority position (that screen time limits are good) that I thought convincing, like they pop up sometimes.