I wish this would happen in the US. Our family is the odd one out, because most parents are not yet aware of the harms of social media and FOMO (esp. for girls).
Of course, our daughter is extremely annoyed at us all the time because of peer pressure...
Meaning that kids that spend 5+ hours per day on their phones are depressed. Up to one hour had no noticeable effects. [0]
Now think about why a kid would self-isolate for 5 hours a day and it might give you a clue about why they are depressed in the first place (hint, it's not the magical screen!).
[0] https://jonathanhaidt.substack.com/p/social-media-mental-ill...
As a potential compromise, an Apple Watch with celular means they can still write to their friends and family, get directions etc.