Why are ant Alexandra and mrs.dubose critical of the way scout dresses and behaves?

Aunt Alexandra and Mrs. Dubose are critical of Scout's dress and behavior because they believe she should act more like a proper Southern lady, conforming to societal expectations of femininity and propriety. They see Scout's tomboyish ways and simple, boyish clothing as inappropriate for a young girl of her upbringing and social status. They are concerned about how Scout's unconventional behavior reflects on the family's reputation.