The significance of Ernesto Galarza's memoir taking place in California in the story is that the story tells of a Mexican boy beginning school without knowing the language or culture of the place.
The boy was an immigrant who has not inkling of what he will face as he begins his life journey in California.
I'd say that it is true. It makes sense. You call a friend to tell them something. You FaceTime a friend to see their reaction to something funny, etc. Guys communicate in different ways than girls.