Interviews are the worst, but they're pretty much unavoidable.
The problem is, no matter how much you prepare, they don't always go as expected. This means you sometimes have to think on the spot.
Maybe you've made up a completely unbelievable scenario in a bid to show that you're totally capable of overcoming work-related obstacles.
You might have even oversold your skills.
Or you've convinced them that you're definitely a people person. With, you know, interesting hobbies.
And surprisingly, you got the job!
