Shoppers line up to shop on the opening day of fast fashion e-commerce giant Shein, which is hosting a brick-and-mortar pop up inside Forever 21 at Ontario Mills mall

Ontario, CA - October 19: Shoppers Cristopher Lewis, of Fontana and his finance Raysa Rubio, of Rancho Cucamonga, are among the first group of shoppers taking the opportunity to shop on the opening day of fast fashion e-commerce giant Shein, which is hosting a brick-and-mortar pop up inside Forever 21 at the Ontario Mills Mall in Ontario Thursday, Oct. 19, 2023. (Allen J. Schaben / Los Angeles Times via Getty Images)