I think some of us who hate cars (me included) also picture development patterns where cities aren't so sprawling that those with disabilities would have trouble getting around. In your case, a walk/bike ride across town might not be necessary. The market would be nearby, accessible to you via some small electric vehicle that operates on something closer to a human scale than a Ford F150. Heck, even the design of buildings themselves cause you problems because of cars. Instead of a small market, we have big box stores that require one to move significantly further while shopping.