Why is the mom stubborn in borders?

The mother may be stubborn in "Borders" as a way of asserting her identity and autonomy in the face of external pressures to conform. She may see her stubbornness as a form of resistance against societal expectations or as a way to protect her cultural heritage and beliefs. Additionally, her stubbornness could be a defense mechanism developed out of necessity to navigate the challenges she faces as an immigrant or marginalized individual.