Is this just in Utah valley or is it everywhere? Admittedly, I see more kids around here than anywhere else I've been. But the rabbit-like procreation rate of Mormons is, for the time being, beside the point.
Whether it happens at a grocery store or a restaurant or anywhere folks bring their kids, which is everywhere, it scares the bejesus out of me every damn time. Kids are sorta scary anyway, with their unnaturally loud voices given the scaled-down size of their vocal cords, their ability to change direction and velocity with no warning, and their complete and utter lack of any sense of context. But now and then I'll catch a glimpse of one that's gliding. Gliding! A kid who's running at least gives you some aural cues that something's about to come tearing out of the next aisle. These new ethereal, gliding mutants not only have the added speed from their roller-shoes, but they move almost silently, darting out of nowhere or stalking their prey in a near-perfect stealth.
I ran a quick search for images of these ghastly munchkins, hoping that some photographer out there had captured the correct sense of terror. While I did learn that apparently this phenomenon is this man's fault, bupkis on the photo front. There are some ads featuring somewhat-scary kids, and some snapshots of way-too-old-for-this kids "grinding" on various public surfaces using these shoes as skateboards, but I think it needs to be seen in motion to be understood. Imagine the last kid that was whining at a restaurant or otherwise attempting to spoil your day. But now imagine him/her standing perfectly still. If that wasn't suspicious and bizarre enough, now imagine the perfectly-still kid silently gliding straight ahead at high speed, moving nary a muscle. Catch this in the corner of your eye and your confidence in everything from the laws of physics to any sense of justice or compassion in the universe will be shaken to the core. Did the Matrix just glitch out for a moment? Is someone using your grocery store as a set for some drug trip film? No, they're here, and they're real, at least real enough to run into you and get kid slime on your good jacket.