You physically restrict the device, as you would a knife or any other item you deem dangerous. I wouldn’t give, say, a ten year old 24/7 access to a butcher knife. No, it’s in the kitchen.

Does that 100% prevent bad things? No, but it’s obvious, cheap, and good enough that everybody stopped trying after that.

If you have a computer in the living room, I can guarantee that the odds that your son or daughter is watching something bad will be very low.

The great thing about these solutions is they require no complex machinery, either literally or politically. But if you look around, people just jump the gun past these solutions. Meaning, they’re not trying.

Which, IMO, if you don’t care about your kids, obviously then I don’t either. Which is fine because as a parent that’s your right, and I support that right.