middle-aged costumers BI Intelligence Business Insider Intelligence shop online all in! over the age of 55 one in four mobile shoppers over the age of 55 one in four people aged 55 and older BI Intelligence ages 45-54 that drive e-commerce trends BI Intelligence BI Intelligence one in four people aged 55 and older one in four people aged 55 and older one in four people aged 55 and older