Walking without shoes on makes me pay more attention to where I'm going. With shoes, there's not too much difference between paved and gravel paths, but when you feel where you're walking, the type of ground becomes a lot more relevant.
I'm sure this concept could apply to a lot of other things. Not using a calculator to do math could help me appreciate numbers. Cooking things from scratch instead of eating prepared meals changes how I eat. Shoes and calculators and prepared meals are very useful and I'm glad they're around, but occasionally doing things in different ways allows for new perspectives.