If something like this was in widespread use it would have much more impact since countries would see whole swathes of the internet immediately go dark when they make stupid laws.
Some parents are awful at parenting, so much so it makes me question why they had kids if they clearly don't care about bringing them up properly.
It's a no brainer that kids should have minimal screen exposure. There's even organisations which specifically state the most ideal screen time (basically none up to 18 months, 1 hour max up to 5 years old). iPad children will be a detriment to the future of any country.
The screen time is bad enough, without the sloppy content you can very easily find online. The best ways to destroy a kid are to saddle them with social media, media consumption and porn/gambling/vices at an early age. Their brain is being fried during development.