I seldom wear shoes and often walk for several miles at a time on asphalt and cement with no problems. Since I'm in Southern California, I can go barefoot winter and summer. For me, one of the great joys in life is to splash about barefoot in the rain. Been doin' that since I was a kid and I guess I've never out grown it. I can walk on hot pavement with ease in the summer as well.
Lex