Why are people dressing up less?

When it comes to fashion, the times they are-a-changin’. It used to be that people would put on a suit and tie before getting on a plane, and the idea of a “casual Friday” was absurd. But now, stores like Lululemon are raking it in producing “athleisure,” clothing you can wear to the gym or any number of other places. But not everywhere has embraced allowing people to dress down on a day out.