In theory once the child grows up and shocked that their credit score is ruined, they can file a police report to wipe the debt, but that also means their parents will go to jail, a large risk considering they're likely not in a good physical/mental health in the first place.

Other countries solved this by either having national ID or a working KYC system.

If it makes you use your device less, then you do save energy a bit.

And there's also bitflips. Acceptable for astronauts carrying normal laptop to watch movies, but in a data center? Solving it through redundancy easily cut the usable capacity to half, and there's not enough shielding with any competition for the payload slot.

The usual criticism of Mars colonization is maintaining a base in Antarctic is already a heroic effort despite being relatively easier. Google and Microsoft mostly abandoned their "data center underwater in nearby shore" plans even though in those the tech would've only sat for few minutes going down or alternatively waiting for the problematic module being floated to the surface.

Head First series try to take different approach, but by then my brain has already too used to question every single sentence and goes on its way exploring which books simply aren't designed for.

But in general, yeah, unless you do it regularly, living near sensitive facilities (airport, military base, hospital, factories, research labs etc) or deliberately transmitting at/near emergency frequencies (police, paramedic etc) at most you'll get yelled by a pissed off operator (at that point, stop, they could be already coordinating with someone else to triangulate you)

Indonesia's electronic wallet have two tiers, unverified and verified. You don't even need a bank account (because most people don't), just a local number (which even tourist can buy easily at airport), with the limitation on unverified tier is that you can only top it up (by cash if you don't have local bank account) and spend it on merchant, no receiving nor sending money. There's also transaction limit but most of the population won't cross that in normal days.

More fancy payment flow are also available, such as vendors generating one-time QR code that already include the payment amount, and the user apps generating one-time QR code that the vendor scan, thus switching some of user steps to the vendor.

In most cities I've lived and visited, using QR is far more convenient than paper. Good luck using contactless when most phones don't support it, and even when Visa & MasterCard pushed their contactless standard, I never encounter a single vendor with a working machine (this range from small shops to large hypermarket). Maybe because they have bigger MDR than QR, but from customers PoV contactless simply don't work, until QRIS also adopt NFC and suddenly it's workable (but not widespread yet since most phones still don't)

I personally hope this could drive more sales for those who don't necessarily want an ereader (or already have one) but are interested in tinkering with it (I doubt anyone looking for gaming or messaging will pick it, seeing it's still more expensive than a proper Android phone), and thus lower the price of future models for everyone.

There's probably some niche where ridiculously long battery life (plugging a small solar panel will effectively make it self-sufficient) and sunlight readable screen with very basic apps would be welcome.