Group 1: 罗永浩 - 罗永浩, born in 1972, dropped out of high school due to dissatisfaction with the education system, which led him to work in construction and connect with laborers [1] - He has a background in selling health products and has been involved in technology and internet ventures, including a failed IT project and successful live-streaming sales [2][5] - His popularity surged during the internet era, with his teaching videos going viral, showcasing his humorous style [4] Group 2: 西贝 - 西贝 started as a restaurant serving Inner Mongolian cuisine but has evolved into a higher-end dining experience, attracting a full customer base despite rising prices [6] - The introduction of children's meals has been a strategic move, catering to modern consumer trends where parents seek healthy options for their children [7] Group 3: 华与华 - 华与华 emphasizes simplicity and consistency in their approach, often securing long-term contracts worth 6 million annually through extensive advertising [8] - Their marketing strategy revolves around the concept of "super symbols," which combines familiar ancient symbols with modern design to resonate with the public without the need for education [9][10] - The company is noted for not participating in competitive bidding, a practice that is envied by others in the management consulting and software sectors [11]