I don't think this is a viable or realistic option in 2026/2027. Try to imagine what your own personal reaction would have been when you were 14 years old if 90%+ of your peers had an iphone 17 or equivalent and your parents gave you a flip phone, and tried to ban you from using smartphones.

Why repeat the same argument if it clearly hasn't worked? Do you expect it to suddenly become effective?

Change in behavior can only follow from change in incentives. Parents must be held legally liable if they allow their children access to social media. That means jail time for negligence.