I like being barefoot in summer. I frequently walk the dog barefoot on a paved sidewalk. I especially enjoy doing that in the evening when the sun has gone down but the pavement is still warm. I like feeling how the different driveway material hold the heat differently. Some are warmer than others. I start building my tolerance up with short walks in the spring and get to the point where I can do the whole mile loop bare foot. This has the added advantage to being able to walk on wood chips in the yard.