I hadn't heard of such a thing, but read this article the other day. Go on--be surprised and shocked.
Maybe I'm insulated because we do have kids and seem to only go places where other kids abound, but come on people. They're children!
In the comments (and no, I didn't read all ten billion of them), I noticed a number of folks spouting about how parents need to do a better job "controlling" their kids.
Control is such an illusion, folks. If I've learned one lesson in a dozen years as a teacher, it's that.
Control is an illusion.