As others said, technology is a big part of the lives we live today. So much is depending on having an internet access and even though its possible to drop it all, it may also limit your abilities to move on to something else.
To Avoid gaming, an idea could maybe be to sell the gaming rigs and instead by a smaller PC not meant for gaming, Like a Laptop (non gaming), which basically has a crappy GFX, so its possible to surf and all that, but gaming is more or less impossible at an acceptable quality.
It of course don't stop the ability to sit on youtube and other time suckers like that, but its a step in the right direction.
I set my browser start page to Gamequitters, not to just keep an eye on things, but to give me a bad feeling if i open a browser ready to youtube or facebook ? i will get Gamequitters in my face and think.. damn right, maybe i shouldn't ?
That being said, i think quitting gaming and such, requires that ability to actually have the ability in your reach somehow, to make you fight the urge to jump back into it. Just like a drug addict can quit using drugs, but they will always have the ability to get their hands on it, so they have to not just drop the ability to use, but also fight the urge to fall back into the addiction.