english: Well, there are, of course, a number of reasons, but perhaps the primary reason is because we're still organized as a species in the same way that we were organized 200 or 300 years ago.
non_english: Ну, звичайно, для цього є багато причин, але, можливо, головна причина - це те, що, як вид, ми організовані так само, як і 200 або 300 років тому.