I've ridden thousands of miles with clips. I have never ridden with clipless pedals such as SPD. A few winters ago I took the clips off because my boots didn't fit into the clips. I wear boots with thick socks for warmth. Now I prefer riding in regular shoes or sandals or boots. If you are touring you will probably spend a lot of time off the bike walking, sightseeing, etc. So, I guess I agree with Grant Petersen.