While i agree that sometimes getting a ride can be easier, there are many benefits to walking that cannot be experienced with other modes of transportation. for example, walking outside allows me to breathe in the fresh air, get some exercise, and appreciate the outdoors, all at the same time. thoreau points out that walking can make us feel free

There are many reasons why you should get out and walk. While walking in nature you are breathing fresh air, you are hearing the sounds of nature, get in  touch with our natural surroundings and become a part of it. Also walking is a way to have break from technology. It is something that also make you feel free.
Walking makes you happy and it frees your spirit and mind.