Yep, not only is shown in movies/series/games but I listen to a brazillian podcast that lives in the USA and they make fun of that so I never doubt it.
"What if you stepped on dog poop out on the street, and you went home without realizing it? What if the American father and mother and eldest son and eldest daughter all stepped on poop and went home without realizing it?"
Unless I stop people at the door they will generally walk straight into my house tracking dirt all over my very pretty rugs. I don't understand how so many people can apparently live like that at their own place it's so nasty.