Why people spend money on things they don't need???

Really, i don't understand.
I study now on awesome Cyber Security Intelligence course, there are so much interesting things..

But there also some people that will never use these techniques.
Worth of this course is about $6000, and what the hell these people sitting in the class, don't understand anything, slowing down the material, and ADMIT, that they will NEVER work in this specialization.
Sorry, but it's fu**ing $6000! Think first and then do something...  

Sorry about this :)