Why are girls useful or important in the house than girls?

It seems like there might be a typo in your question regarding "girls" and "girls." If you meant to compare the roles of girls and boys in the household, it's important to emphasize that both genders can contribute equally and meaningfully. Each individual's skills, interests, and abilities, regardless of gender, can enhance a household's functioning. Promoting equality and valuing contributions from all family members fosters a more harmonious and supportive home environment.