Answer: While the grandmother only speaks Spanish, the grandchildren prefer English.
When the tourist lady assumes that Junior won´t know any English due to his appearance, although he doesn’t feel part of the Mexican culture, but the American.
Step-by-step explanation:
In Mericans, by Sandra Cisneros, apparently set in a small Mexican town, the feelings of the narrator and the grandmother show their opposed opinions on their national identity. While the grandmother embraces their Mexican heritage, her grandkids seem to identify themselves with the American culture, from the country considered by the grandmother as a "barbaric country".