I have been an iPhone owner for several years. During those years I have replaced the wired headphones, on average, every three months. Which, apart from being a hidden expense of ownership is also annoying. The phones are great, don’t get me wrong, but things seem to happen to them with a depressing frequency that you could almost set your Apple watch by.
Reasons vary. It is usually wear and tear, or more accurately heavy use. I never take them out. As a result, cables wear and odd behaviour emerges – only one ear bud will work, or the mic stops working. Sometimes the phone starts or rewinds audiobooks. Sometimes it opens apps or sends emails and text messages because Siri thought you were talking to her, when you were in fact yelling playfully imaginative invective at the driver that just cut you off… that can take some explaining. I hear.