Why does WordPress have its theme spread across so many template?

In a nutshell, WordPress does this for powerful lexibility. If your theme design is simple and straightforward enough (that is, you’re sure you want all your loops, posts, and pages to look and work exactly the
same), you can technically just dump everything into a single index.php ile that contains all the code for the header, footer, sidebar, and plug-in elements. However, as your own theme developing skills progress (and as you’ll see with the theme we build in this book), you’ll ind that breaking the theme apart into individual template iles helps you take advantage of the features that WordPress has to offer, which lets you design more robust sites that can easily accommodate many different types of content and layouts.