>>280912586It's a design that has lost popularity. The most recent anime in that picture (No Game No Life) originally came out in 2014, the other series are older. There are a lot of anime series of 2015-2025 where panties are visible but for the most part, the designs are different nowadays, take a look at Kandagawa Jet Girls, Aokana -Four Rhythm Across the Blue- and The Shiunji Family Children, none of the girls in those series wear striped panties as far as I know. So, they aren's as popular as they used to be, they were a popular design in the 2000s and early 2010s.