The big bags of stuff like chips at Costco are for parties and corporate events. Most suburban garages, especially in places it doesn’t snow, are loaded with sports equipment, old toys, and junk you “might find a use for someday.” A lot of people, particularly those who favor light-colored wall to wall carpeting, most certainly do require everyone to remove their shoes inside. My sister is one of them. These customs and practices vary widely since the US has a wide range of climate, social, economic, and educational norms.