South China Morning Post
https://www.scmp.com/lifestyle/food-drink/article/3272923/no-more-yolo-young-south-koreans-who-buy-less-and-dont-dine-out-much
From you only live once to you only need one: Korea’s thrifty Gen Y and Z
For YOLO, think YONO: Young South Koreans are becoming more frugal – having fewer fancy dinners out and fewer cups of premium coffee, and spending less in department stores.