Why didn't Mrs.Herdman work 2 shifts at work?

Mrs. Herdman didn't work two shifts at her job because she needed to prioritize her family's needs and responsibilities. Balancing work and home life can be challenging, and she likely felt that taking on extra hours would strain her ability to care for her children. Additionally, working multiple shifts could lead to burnout, making it difficult for her to maintain her well-being and perform effectively in her role.