I live in Japan and have a friend who moved back to Spain from Japan. They visit Japan this summer, and surprisingly told me they'd buy a lot of things there, to which I was surprised since it tends to be more expensive. He told me that, with kids, things like clothes and backpacks break in matter of weeks which makes no sense, so they were taking advantage of the trip to buy high quality clothes. I kept an eye and yeah, noticed it. So just watched this video that seems to perfectly explain the phenomena and wanted to share it in case anyone finds it informative!