I love to walk, but alas... I ride. My club (like most) has only carts and no caddy program, so I ride. Too many long walks between tees and greens, and so it's a "motor" for me.
But put a caddy out there and I'd walk!
Funny deal. Last year I played a track in Chicago (Cantigy Golf Club) that has caddies. When I dropped my bag the started told me my bag was too big for their kids to carry! I said WHAT? Plus it was drizzling, so I couldn't leave rain gear behind. I walked to the caddy shack and grabbed the biggest kid I could find and said, "He'll do." The kid almost died out there. Seriously. Where is the training on these youngsters? I have a 9.5 inch staff bag, yet I felt the guy in Caddy Shack..... Jeez.