I can think of a similar situation. In some families, girls are not always supported to go to school because of cultural beliefs. This affects their learning and future. As teachers, we may not change it directly, but we can talk with other teachers and find ways to support students.
I also saw that students are affected by many life changes, like moving to a new place or family problems. This can affect their learning, so teachers need to understand their situation.
I think this theory is helpful because it shows that many factors can affect students, not only what happens in the classroom.