Congratulations, you just bought and installed Redhat Linux. Have problems configuring your software, call them up and they will be happy to help you. They are great, actually

But then someone wants to fix their car but they don't have the money to pay a mechanic. Instead they have all the time they need, so they can read through manuals and try to fix things themselves.

Congratulations, you just downloaded, installed and configured CentOS. Have fun playing with it, tearing its guts out, recompiling its kernel and doing whatever you want with it.

Now you are focused on features. "Oh look, super user friendly interface! Never have to open the hood of my car". That is great! What about anti-features. Now that you can't open the hood of your car. One or two car manufacturers can start installing tracking systems that report your position, record all your conversations, all your phone calls, etc. Why? Well because maybe they were approached by the FBI or because they decided they could sell all this as marketing info to third parties.

Now only that, there was legislation proposed to make it actually illegal to open the hood of your car. Think about that. You bought it, you open the hood, and police come to your door to arrest your for it.