"No child under 16 years of age shall possess any device with a screen smaller than 7", or any device with a screen under 11" which contains a LTE radio, unless the device's screen is no larger than 3" (edit:) and has a physical numeric keyboard without alphabetic characters."
There you go. Devices smaller than 7" (all smartphones) are banned. 7"-11" devices are permitted if there is no LTE radio (school tablets). Dumb phones almost always have screens 3" or less in size and are permitted, while anything to do with social media would be almost unusable at that size, let alone bashing out letter-by-letter on the solely numeric number pad.
And as for why smartphones specifically, smartphones are much, much harder to control impulsively. The average American checks their phone 96 times per day, and unlocks it over 150 times per day. How many times does the average American have trouble unlocking their laptop constantly per day? Laptop usage is far more deliberate and intentional than smartphone usage.
"No child under 16 years of age shall possess any device with a screen smaller than 7", or any device with a screen under 11" which contains a LTE radio, unless the device's screen is no larger than 3" (edit:) and has a physical numeric keyboard without alphabetic characters."
There you go. Devices smaller than 7" (all smartphones) are banned. 7"-11" devices are permitted if there is no LTE radio (school tablets). Dumb phones almost always have screens 3" or less in size and are permitted, while anything to do with social media would be almost unusable at that size, let alone bashing out letter-by-letter on the solely numeric number pad.
And as for why smartphones specifically, smartphones are much, much harder to control impulsively. The average American checks their phone 96 times per day, and unlocks it over 150 times per day. How many times does the average American have trouble unlocking their laptop constantly per day? Laptop usage is far more deliberate and intentional than smartphone usage.