Don't appeal to "common sense."
Red meat being bad for you was common sense. Fatty foods being bad for you was common sense. Asbestos being safe was common sense. Hell I saw a guy eat it to prove it was such.
Bright colored Snakes being dangerous is common sense. Something like this isn't common sense. It's parenting by government via criminalization. That's crazy. And we're not even talking about real child abuse.