It does. It wouldn't happen on day one. But, slowly, it would start creeping in. As someone else commented: what if, you buy some mega turbo sex toy 3000 and a couple of years later super religious orthodox government wins elections. What if the government decides that you can buy one thing but not another. What if you want to organise a little poker night with your old buddies and so on. Look what happened with the internet. Endless scare stories about terrorism, pedophiles and eventually mass surveillance is in legislation..