Why do writers write in coffee shops/cafes?

I'm wondering why almost every time I go to a place like Starbucks or Mimi's Cafe, I always spot at least one person sitting alone at a table typing furiously at their laptop on a writing software with pencils and pens and a notebook by their side, occasionally taking a sip of coffee or a bite of cinnamon rolls. And I'm guessing they're authors of a book in progress. So tell me, why do some writers write in coffee shops/cafes? Plus, do you, or would you do the same thing?