This is how it worked for us. Parents did what they could to block PC access, but me and my brother managed to break them all to do what kids do online. At certain point, you have to actually talk with your kids even if it is the kind of 'smoke that cigar until you are sick' approach. Naturally, my dad being my dad, took a different tack. He just picked the PC and took it to his shop.

Different times. Needless to say, I don't think I will be able to try the same approach.