In my experience (as the AC mentions), carpeting in the US is rarely glued down. They mostly use the tacking strips along the baseboards. Oftentimes there's a foam-like padding layer that goes under the carpet and if glue were being used, it'd only be gluing the padding and not the carpet. You'll note that your Wikipedia citation says "or", not "and". So it may be common practice elsewhere, but not in the US.
Also I don't know anyone that wears shoes indoors. I myself have a sizeable weather mat inside the front door and a bench with an interior compartment for storing shoes. If I'm having guests I don't usually make them take their shoes off, but I never wear my own around the house.