Why does Gitl protest that she would never marry Avrom Morowitz, who moved to America? What do her comments suggest is important to her?

Gitl notes that she would never marry Avrom Morowitz because she will never leave her home. The comments below speak to Gitl's love and loyalty to her family.

"I would not go to America/for Avrom Morowitz even if he sent a thousand letters. I will live and die in this shtetl, as did our parents and as did their parents before them. That is how it should be." Gitl's mouth was set in a firm line, and she shook her finger at her brother.