Analog tools: * Not buying them smartphones or tablets or laptops. * Only allowing them access to a desktop PC (or even a Raspberry Pi) with a large monitor i

Analog tools: * Not buying them smartphones or tablets or laptops. * Only allowing them access to a desktop PC (or even a Raspberry Pi) with a large monitor in a public space like the living room. You don't have to watch over their shoulder, but there's only so many things they'll look at while worrying about "being caught". And if they have problems with excessive usage that interferes with their other responsibilities or just the house rules, you can just take the power supply.