They aren't being used as devices to enhance their knowledge, they are being used for TikTok and following each other.. a whole fear of missing out culture.. if no one is posting all day.. you don't have to worry. The services on these devices are made to be as distractive as possible..
If we were to assume that the devices would only be used to enhance education, I'm not sure if I'm convinced they even need to be used. The #1 thing I want my kids to learn is how to socialise, work with or co-exist with others. If everything they need to know is a google search away, you never need to talk to anyone. Hell I don't even have to bother remembering anything or understanding how the world works. Google Maps is a great tool, but can our kids make it home from the mall if their phone battery dies? Why bother how my body works, if my stomach hurts I can just look that up online as well. They know Elon is a right wing anarchist, and they can lookup what right wing and anarchist means at a later date.