Answer and Explanation:
Enrique's mother is making a responsible decision, as she decides to leave for the USA to give him a better life, since her country of origin cannot meet the economic needs she has to feed and promote a good life for her children. Although Enrique doesn't recognize him, his mother goes through a lot of difficulties for being away from the family, but that was a choice made for his sake and it was certainly taken with full responsibility even with the risks he had.
The story of mothers who leave their children with their family and leave in search of a job is not uncommon. Many people see this as irresponsibility, but it is necessary to understand that taking care of a child involves expenses and mothers need to promote the money for these expenses, even if it involves a difficult situation such as traveling without their own children. About this, we can display a quote from the author herself in the book's prologue, where she says:
"I was stuck by the choice mothers face when they leave their children. How do they make such an impossible decision? Among Latinos, where family is all-important, where for women motherhood is valued far above all else, why are droves of mothers leaving their children? What would I do if I were in their shoes?"