Older adults and technology haven't always had the smoothest relationship. From learning to use email to operating smartphones, each new wave has brought fresh challenges and frustrations. Now, mastering QR codes is the latest hurdle. Recent research from the University of South Florida shows that when these interactions are difficult, customer satisfaction and loyalty can suffer. Since COVID-19, there's been a dramatic rise in the use of QR codes, particularly in hospitality settings such as restaurants. This shift has been especially challenging for older adults.