Why did mr And mrs Winterbottom remind sal of her other grandparents the pickfords?

Mr. and Mrs. Winterbottom reminded Sal of her other grandparents, the Pickfords, because of their warm and nurturing demeanor. Both couples shared a strong sense of family and caring, which resonated with Sal's memories of her own grandparents. Additionally, the familiarity of their interactions and the comfort they provided evoked feelings of love and support, making the connection between the two couples even more poignant for Sal.