Let's talk a little bit about what SASS actually is, since it's a pretty important thing to cover. Otherwise, you'd have no connection to why this is worth the effort (even though, to be fair, it is very little effort to integrate into your Create React App projects). SASS is essentially CSS with extended feature support. When I say extended feature support here, though, I mean it! SASS supports the following feature set, which is missing in CSS, and which includes the following:

• Variables
• Nesting
• Partial CSS files
• Import support
• Mixins
• Extensions and inheritance
• Operators and calculations

This feature set alone makes including SASS worth it on nearly any complicated frontend project that you might be working with, and honestly after using SASS for a long time and then not having it, it's hard to ever want to go back to vanilla CSS. So, let's start getting some SASS into our project!