EL PASO — Until recently, Lydia Palacios could not remember the last time she had been downtown. A lifelong El Paso resident, Palacios said downtown was more a childhood memory than a current event. “My father would take us on the bus downtown and take us to Kress to eat lunch,” said Palacios referring to S.H. Kress & Co., the five-and-dime with a lunch counter on the northwest corner of North Oregon Street and Mills Avenue. On her way to a doctor’s appointment on a recent Monday in June, Palacios said she and her husband, Sergio, were doing something they had not done in many years – lunching together downtown. The two sat at an umbrella-covered table waiting for the fish tacos they had ordered from The Reef Mobile Kitchen, a food truck on Mills Street that serves seafood Mexican fare.