Lupe Ruiz-Flores

Seven-year-old Alicia and her parents are enjoying the annual festival celebrating Mexico's independence. There are mariachis strolling across the festival grounds, folkloric dancers twirling in their colorful costumes and brightly colored booths lining the plaza. But the hot day has made Alicia thirsty. Her mother suggests aguas frescas and points to a booth lined with jars of brightly colored fruit juice: there's watermelon, strawberry, mango and...