Waiting until they are a teenager is far too late to form the appropriate habits around self limiting screen time.

Given that smartphones didn’t even exist until I was a teenager, going to go ahead and call bullshit on that.

this is clearly a parenting issue

Sure is. Too many parents handing their developing children smartphones long before they should. Luckily OP hasn’t made that mistake.

And nobody needs articles to tell them the corporations and algorithms are evil. Some of us are old enough to have lived through the advent of them.