Baby shield

I am intrigued by those new strap-on baby carriers that position the infant facing forwards on their parent's stomach like a shield. The baby's arms and feet dangle in mid-air, the breeze hitting their cheeks and ruffling their peachfuzz hair, while the parents go about their business, often accompanied by a purebred dog. The strap-on families tend to look cheerful and photogenic, like catalogue people. Do the babies ever wonder, just what in the heck am I doing out here in front? Am I supposed to protect this person? Should I hold up my fists? Why doesn't the dog have to dangle like this? Anybody?