The person with the real answer to that problem is sitting on multiple millions of dollars. The stopgap (closed garden mobile environments) is unpleasant for everyone involved because of how crazy limited it is.
If you want to stay anonymous, load a pre-paid debit card and jump through the anti fraud hoops. Nobody said staying off the grid was going to be easy.
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If you want to make kids tech literate, you deconstruct something they use in their every day lives, when they're old enough to be capable of it. A good example would be a high school course focusing on high level full-stack design - here's twitter, here's how their servers look like in a very simple way, here's their API, let's do a 2 month project to make a frontend. Or let's make our own mini twitter just for our class, here's a sql server and we can write the backend together over a month or so. That sort of thing would both engage kids and give them useful experience.
That being said, I miss 5:4 and 4:3 monitors and want them back, because having to set up widescreens vertically defeats the point. two 4:3 monitors give me the horizontal area I want without consuming my entire desk, but it's difficult to find good ones at a reasonable price.