Okay let's say you're right: no one can really define "at risk" so that's fine. What about kids? Can I seek out kids online and directly engage them in their DMs and tell them how awesome gambling, drugs, and guns are? I have links to all these sites (and phone numbers for totally reputable guys) they should remember for when they turn 18 that I will send them.
Drugs ate pushed on television stations a hundred times a day. There are so many commercials for drugs, it's disheartening. There are adds to be more beautiful, thinner, more muscular with drugs and products that promise all of these things. Syrupy sugar drink commercials and fast food restaurants are plastered on TV and print all day, everyday. All for the kids to see.
Don't forget the evils of "harmful lyrics" that Tipper Gore saved us from. That was teaching children forbidden concepts like inner city music and dangerous metal music.