> If there's a fundamental culture shift,

You mean this culture shift is needed for the masses but I don't think that's the case. In my widest social circle I am not aware of anyone giving alcohol to young kids (yes by the time they are 16ish yes but even that's rare). Most guardians would willingly do similar with locked devices.

The real problem is that the governments/companies won't get to spy on you if locked devices are given to children only. They want to spy on us all. That's the missing cultural shift.

> Most guardians would willingly do similar with locked devices.

Considering the echo chamber in which I was at school, my friends would have simply used some Raspberry Pi (or a similar device) to circumvent any restriction the parents imposed on the "normal" devices.

Oh yes: in my generation pupils

- were very knowledgeable in technology (much more than their parents and teachers) - at least the nerds who were actually interested in computers (if they hadn't been knowledgeable, they wouldn't have been capable of running DOS games),

- had a lot of time (no internet means lots of time and being very bored),

- were willing to invest this time into finding ways to circumvent technological restrictions imposed upon them (e.g. in the school network).

The kids in your social circle are used to not having access to alcohol, but they're not used to not having access to social media.

Hypothetically, if every kid in your social circle had their device "locked", the adults would probably have a very hard time the kids away from their devices, or just relent, because the kids would be very unhappy. Although maybe with today's knowledge, most people will naturally restrict new kids who've never had unrestricted access, causing a slow culture shift.