Taking myself as an example: I can't use the Apple earbuds, they immediately fall out of my ears. Which is why I use either large over-ear headphones (MDR7506), large over-ear noise-cancelling headphones (BOSE) for work in noisy places, or in-ear headphones that stay put even when running (Sol Republic Relays). And I want to have the flexibility of using any of those.
Every wireless option I've ever tried sucked badly. Some really badly. In various interesting ways.
But "most people" (I love that phrase) won't care. It seems the included apple earbuds are good enough for almost everyone.