What's the point in learning Sass?

It's a personal choice to know SASS. SASS is very powerful language for CSS users to write code in a short amount of time and not worrying about ";" or "{}". One mistyped ";" or "{}" is basically "GG" in a huge stylesheet. Over the years, CSS users desired for variables, because remembering the specific color-value or project design is a pain in the butt. When the project design changes, you don't have to go scouting your code to change the color-value. Don't Repeat Yourself (DRY), you find yourself reusing the same set of codes in your projects. There's always one set you'll remember and reuse.

Like mentioned before, Sass makes maintenance on CSS more efficient. I've had websites in the past with huge stylesheets. Brand colors were all over the place, the same shade of blue might appear ten times or more. Also there was a system behind padding/margin for consistent whitespace. It is incredibly hard and time consuming to make changes to projects like that using plain CSS. I might have a margin of 10px defined in as much as twenty selectors. I might also have a margin on some other elements that is twice that, 20px, and should be related to the previous margin (always double). In Sass it's a breeze; you define this base margin once, and simple multiply that for the 20px. If you want to change this base margin to 15px, you have to change it in one place and everything else follows logically.

Another point that isn't mentioned yet, is that a lot of jobs openings call for knowledge in Sass or LESS. So if you're doing these courses to increase your job opportunities, it can be sensible to learn Sass. It might just improve your chances.

I think we are on subjective waters up to this point. It is not an obligation to learn Sass or to appreciated, just let it sit in the back of your brain and when you get involved in a big project, with lots of long StyleSheets, evaluate it again.

Adding to the previous responses it makes it more functional, for example, being able to treat mixins like functions with arguements makes it easier to code.

I had this in mind, that's why I read this forum. After hearing other people's explanation. I can see now why sass would be important to learn. Until I become better at CSS, I'm going to just take notes on this course and probably not practice it too much yet, but keep it in the back of my brain like Jessica suggested and if I need to condense my code down or learn it for business practices, I can pick it back up.

Yup sass is awesome. I can already see how beneficial it would be to use sass within a project. Most websites have a colour scheme in place, if the client changes their mind on this color, using variables such as $primary-color: #363; would save a HUGE amount of time for future changes as the colour only needs to be changed in one place. Sass is pretty powerful, consider the @mixin and @include, this combined with a similar use as functions were math can be applied, is an incredible skill to know.

From what I've learned up to now, it just makes your website even more complex and complicated and adds a ton of extra messy code that is hard to read and even harder to understand. Can't we just wait for the next version of CSS instead of creating our own hacks and patches and expecting everyone to keep pace and learn every little nuance of yet another computer language?