I know it’s popular in a lot of Japanese animes, but I’ve never seen anyone walking around with over ear headphones in real life. I see them mostly in open offices worn by developers trying to get some quiet while they are coding.
If you took public transportation or go any place young people hang out you would see them too. (Malls or coffee shops)
All the wireless buds used to be those ones that were strung together at max wirelessness