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The placement of buttons on women's shirts on the left and men's on the right has historical roots linked to social class and practicality. Historically, wealthy women required assistance to dress, leading to the left-side button placement for easier access by right-handed servants. In contrast, men's clothing was designed for self-dressing and ease of access to weapons, influencing the right-side button placement. While modern fashion has introduced unisex clothing and varied designs, traditional button placements still persist in some garments, reflecting historical practices.