A robot that takes orders, makes coffee and brings the drinks straight to customers delivers an order in a cafe in Daejeon, South Korea, May 25, 2020. The new barista at a cafe in Daejeon, South Korea, is courteous and swift as it seamlessly makes its way towards customers - but it is not a human. REUTERS/Kim Hong-Ji

A robot that takes orders, makes coffee and brings the drinks straight to customers at their seats is seen at a cafe in Daejeon, South Korea, May 25, 2020. Robots could help people observe social distancing in public, said Lee Dong-bae, director of research at Vision Semicon, a smart factory solution provider which developed the barista robot together with a state-run science institute. REUTERS/Kim Hong-Ji

A robot that takes orders, makes coffee and brings the drinks straight to customers is seen in a cafe in Daejeon, South Korea, May 25, 2020. The system, which uses a coffee-making robotic arm and a serving robot, can make 60 different types of coffee and serves the drinks to customers at their seats. REUTERS/Kim Hong-Ji

A customer picks up her drink at a cafe where a robot that takes orders, makes coffee and brings the drinks straight to customers is being used in Daejeon, South Korea, May 25, 2020. An order of six drinks, processed through a kiosk, took just seven minutes. REUTERS/Kim Hong-Ji

Customers wait at a cafe where a robot that takes orders, makes coffee and brings the drinks straight to customers is being used in Daejeon, South Korea, May 25, 2020. REUTERS/Kim Hong-Ji

A robot that takes orders, makes coffee and brings the drinks straight to customers at their seats is seen at a cafe in Daejeon, South Korea, May 25, 2020. REUTERS/Kim Hong-Ji