Consider that child pornography was actually LEGAL at one time. Later, it became illegal to PRODUCE. And then it became illegal to DISTRIBUTE. And then it became illegal to SHOW to someone else. And then it became illegal to POSSESS if produced AFTER a certain date. And then all possession became illegal. And then the penalties became stiffer. Then stiffer, still. And stiffer again and again.
Consider also that child pornography now includes DRAWINGS and CARTOONS which at no time involved the use of actual children, something that would have been unthinkable just a few years ago.
And these laws can DESTROY the rest of your LIFE, even if there are no victims.
This is the essence of incremental social engineering.