The Question and Answer section for A Doll’s House is a great resource to ask questions, find answers, and discuss the novel.
This would depend on what country you are referring to. Different countries have different cultural norms, especially around gender roles and identity.
Nora is understanding just how bad her marriage is. She is excited about Christmas but feels Torvald's patronizing relationship to her.
Torvald defines the role of women and mothers by explaining that it is the simple duty of a woman to be a good wife by decorating the house and a mother should raise her children. He thinks a wife should be "taken care" of and be subservient.