“Amazon.com Inc. is considering a plan to open as many as 3,000 new AmazonGo cashierless stores in the next few years, according to people familiar with matter, an aggressive and costly expansion that would threaten convenience chains like 7-Eleven Inc., quick-service sandwich shops like Subway and Panera Bread, and mom-and-pop pizzerias and taco trucks”.

Source : Amazon Said to Plan Up to 3,000 Cashierless Stores by 2021 – Bloomberg