[jungler]

I think the trick is not to regulate total screen time, but to regulate long uninterrupted blocks of screen time.

The "social media loop" that haunts many adults is not really different from whatever cravings kids are going through, and in both cases it can be combated with scheduled activity breaks that involve getting up and doing a bit of housework or going outside for few minutes. It promotes better sleep habits while not really limiting the core activity.

I would definitely not recommend encouraging anyone to go from one sedentary activity(games, Youtube) to another(homework, coding etc.) directly - that's something that makes "screen time" a nebulous timesink.