Because, let's be real, they're like the hipster of programming concepts: everyone's got one, but not really.
I mean, what's not to love? They're like little anonymous functions that just hang out with your variables and make them feel all warm and fuzzy inside.
But, like, in all seriousness, closures are actually pretty useful for creating private variables and functions that can be passed around like little party favors.
Check out our other articles on the importance of closures:
Why I Love Objects (it's like, they're like the cool older sibling that gets all the attention)
Why I Love Functions (because, like, they're the real MVP)
Or, like, just go back to the home page and read some more learn to stop coding advice