Seniors take cue from QR codes, embrace technology

Elderly emerge as boom market for mobile payment firms, digital economy players

For more than a decade, Ma Wansheng ran a small food stand in a night market in Lanzhou, capital city of Northwest China's Gansu province, providing local snacks for people working overtime or hitting the bar.

Accepting payments proved a hassle for the 71-year-old, who often had to fumble in his pocket for change on chilly nights, while keeping an eye on food cooking in the oven.