I think it is the general fear of forgetting the headphones in a piece of clothing and that they will be washed, I implemented in my cable headphones to have a special bag for them, being large it is difficult to forget in a pocket since it is bulky, sometimes a few cheap headphones get us out of the way and prevent us from having to listen to the annoying noise of the city, I think that as long as they comply with that, everything will be fine