@LaughingPig thank you for explaining your point of view. I do think there is a lot of sense in what you say.
On a slight tangent I have taught in schools, both state and private, with open access to smartphones at breaks and at schools where they are fully banned (even evenings/weekends in the case of one boarding school), and I know I would rather send my children to a school without smartphones.
I have also noticed though that some Gen Zers can be more capable or sitting with each other and giving one another their full attention without turning to their phones every few seconds than those of us who are millennials or older, and have wondered if having grown up with these phones they have learned along the way to regulate usage better. This is anecdotal, though. I haven’t read “The Anxious Generation” for comparison.
I haven’t fully formed my opinion on all this yet but I do think it’s worth people who share the view of that smartphone free childhood movement, for better or worse, knowing that it exists. (Perhaps, in time, nuance will be added to the social media progression plan so it’s not 0 to 100).