No, one big purpose of a rug is to keep your place warmer and give you a softer and warmer place to walk or put your feet. So in front of your sofa, for instan

No, one big purpose of a rug is to keep your place warmer and give you a softer and warmer place to walk or put your feet. So in front of your sofa, for instance, where your feet are usually on the floor, is better covered with a rug, so your feet don't get cold from the floor. They also help reduce the noise caused by walking around, so your neighbors don't complain.