It's carpet that isn't thick. It doesn't mean it's not durable. Carpet that you see in restaurants or hotel lobbies, are low pile
"Carpeting has pile that is either “loop” (where the strands are in loops) or “cut” (where the strands are cut). Loop pile is sturdier than cut pile, meaning that footprints and shading won’t show up as much. This is why loop pile is often used in high traffic situations such as hallways and staircases. Cut pile has a softer, more velvety, texture and is best in less trafficked areas like bedrooms and libraries. Some carpets are all one color, but have both loop and cut pile that creates a subtle pattern using texture.
Whether loop or cut, pile can be low, about a quarter-of-an-inch thick, or high, over half-an-inch thick. In a heavily trafficked area, such as a front hall, it makes sense to have a low pile carpet. Use the shaggier, high pile carpets in areas that get less wear and tear"