Teenage son wants to buy new underwear

Hello all. So my teenage son told me that he wanted to buy new underwear which was fine with me since his current pairs are getting pretty old. He then showed me this site I can’t exactly remember the name but it had underwear with all kinds of images and patterns. I asked him if he was sure about these and told me yes because all the kids are wearing them nowadays. I was just kind of surprised because I thought kids eventually grew out of underwear with cartoons and characters on them. I did end up buying them because it doesn’t really matter to me. Are your teenagers wearing underwear with images and patterns on them?