Obviously, because of money, more and more courses are taking walking out of the game to promote cart rentals! My club allows walking, but, you have to carry your bag, no pull carts. I'm 67 and this is part of my exercise regimen. My course is a 6 mile hike, but, it sure would be nice to use a pull cart. Also, TPC in Avondale, charges an additional $10 to walk besides the green fee. No wonder the USA is a fat nation, because it seems to be all about the money!